The X Factor

Dermot O'Leary hosts the final of the talent contest. The remaining acts get one last chance to make a good impression on the viewing public and judges Simon Cowell, Louis Tomlinson, Ayda Williams and Robbie Williams, and win the coveted title of this year's winner. Last in the series.

Weeks of lively auditions, gruelling boot camps and tense on-stage showdowns draw to a close with the first instalment of the talent show's grand final. Before the winner is announced, the remaining acts face another stand-off, as the judges deliver their verdict on each act's performance. As ever though, their decisions are not the only thing that will determine who emerges as this year's champion, with the public vote to follow. Plus, a selection of guest stars also take to the stage to help send this year's contest off in style.

Dermot O'Leary introduces the results from yesterday's semi-finals, and reveals which acts have been chosen to go through to the final by the viewing public and judges Simon Cowell, Louis Tomlinson, Ayda Williams and Robbie Williams, returning to the show after a three-week break. Plus, a musical performance from a special guest star.

Dermot O'Leary presents the semi-finals, with the remaining contestants hoping to win a place in next week's final by impressing the judges, including Robbie Williams, who returns having been on tour in South America in recent weeks.

Dermot O'Leary introduces the results from the fifth week of the live shows, and reveals which acts have made the best impression on the viewing public as wells as Simon Cowell, Louis Tomlinson, Ayda Williams, and this week's special guest judge. Plus, a musical performance from a special guest star.

Dermot O'Leary hosts the fifth week of live shows. The remaining acts will be keen to impress judges Simon Cowell, Louis Tomlinson and Ayda Williams - as well as the viewing public - and escape elimination in tomorrow night's results show. Ayda's husband and Groups mentor Robbie Williams is due to return to the judging panel next week, having missed several recent shows due to touring commitments in South America, so tonight will see a guest stepping into the former Take That star's shoes once again.

Dermot O'Leary introduces the results from the fourth week of the live shows, and reveals which acts have made the best impression on both judges Simon Cowell, Louis Tomlinson, Nile Rodgers and Ayda Williams, and the viewing public. Plus, a musical performance from a special guest star.

Dermot O'Leary hosts the fourth week of live shows. The remaining 14 acts will be keen to impress judges Simon Cowell, Louis Tomlinson, Ayda Williams and Nile Rodgers - still filling in for the absent Robbie Williams - as well as the viewing public - and escape elimination in tomorrow night's results show.

Dermot O'Leary introduces the results from the third week of the live shows, and reveals which acts have made the best impression on both judges Simon Cowell, Louis Tomlinson, Robbie Williams and Ayda Williams, and the viewing public. Plus, a musical performance from a special guest star.

Dermot O'Leary hosts the third week of the singing contest's live shows, with the remaining acts keen to impress the judges as well as the viewers who will be casting votes for their favourite - with tomorrow night's results show revealing which acts have proved a hit and who will be leaving the contest this week. This year, Simon Cowell is in charge of the Girls, Louis Tomlinson has the Boys, Ayda Williams has the Overs, and Robbie Williams puts his Take That background to good use in coaching the Groups.

Dermot O'Leary hosts the Sunday night results show, with judges Simon Cowell, Louis Tomlinson, Robbie Williams and Ayda Williams assessing the previous episode's performances. Plus, a special musical guest star will be performing on the show.

Dermot O'Leary hosts the second week of live shows, with the remaining acts performing to impress judges Simon Cowell, Louis Tomlinson, Robbie Williams and Ayda Williams - as well as the viewing public at home. This year, Simon will be coaching the Girls, Louis has the Boys, Robbie will take on the Groups and Ayda has the Overs.

Dermot O'Leary hosts the second of the live shows. The 16 acts selected from the auditions will perform to impress judges Simon Cowell, Louis Tomlinson, Robbie Williams and Ayda Williams - as well as the viewing public at home. This year, Simon will be coaching the Girls, Louis has the Boys, Robbie will take on the Groups and Ayda has the Overs.

Dermot O'Leary hosts the first of the live shows. The remaining 16 acts will perform to impress judges Simon Cowell, Louis Tomlinson, Robbie Williams and Ayda Williams - as well as the viewing public at home. This year, Simon will be coaching the Girls, Louis has the Boys, Robbie will take on the Groups and Ayda has the Overs.

The remaining 24 acts travel to glamorous destinations across the world and have just one more chance to impress their mentors as the live shows draw tantalisingly closer. Each of the regular judges will be joined by a guest who knows all about what it takes to make it in the industry, to help them decide which of the contestants make the cut.

The remaining 24 acts jet off to the Judges' Houses stage. Offering a glimpse into the jetset lifestyle that the winner could have, the contestants travel to glamorous destinations across the world, and with just one more chance to impress their mentor, each act will be hoping to convince them that they have the star quality required to reach the live shows.

The final Six Chair Challenge episodes, in which the acts perform individually before the judges choose who will be selected for the next stage.

The 2nd Six Chair Challenge episode, in which the acts perform individually before the judges choose who will be selected for the next stage.

The Six Chair Challenge returns, as the judges each decide on the acts they take through to their Judges' House. This year each judge has a golden button, which guarantees one act in their line-up a place in the final 6, meaning that once they have a seat, they cannot be swapped out.

It's the final night of auditions.

The search for a new music superstar continues with the fourth of the Auditions shows.

The search for a new music superstar continues with the third of the Auditions shows.

The search for a new music superstar continues with the second of the Auditions shows.

Contestants audition in the Wembley SSE Arena before this season's new panel of judges: Robbie Williams, Ayda Williams, Louis Tomlinson, and Simon Cowell. Dermot O�Leary returns as host.

Half of the final 16 contestants will sing their hearts out on the live stage. Stormzy performs.

Half of the final 16 contestants will sing their hearts out on the live stage. The 4 wildcards are revealed. Liam Payne performs.

The show sees Sharon Osbourne, Nicole Scherzinger, and Louis Walsh reunited with music mogul Simon Cowell on the judging panel once more.

Throughout the Sunday final an outstanding line-up of guest stars will perform. The remaining 2 contestants compete in a final showdown before the winner is crowned.

Dermot O'Leary presents the first of two finals, in which the 3 remaining acts take to the stage alongside a surprise guest performer, singing two songs each in front of an audience of thousands at Wembley Arena.

The results of last night's live show are revealed, and 3 contestants go through to the finals.

The 4 remaining contestants take to the stage to perform for the judges and audience at home, all in the hope of making it into the finals.

The 5 remaining contestants take to the stage to perform for the judges and audience at home, all in the hope of sealing their place in the competition for another week.

The 6 remaining contestants take to the stage to perform for the judges and audience at home, all in the hope of sealing their place in the competition for another week.

The results of last night's live show are revealed. Musical performances by Nathan Sykes and Olly Murs.

The 7 remaining contestants take to the stage to perform for the judges and audience at home, all in the hope of sealing their place in the competition for another week.

The results of last night's live show are revealed. Robbie Williams and Emeli Sande are performing tonight.

The 8 remaining contestants take to the stage to perform for the judges and audience at home, all in the hope of sealing their place in the competition for another week.

The results of last night's live show are revealed. Louisa Johnson performs.

The 9 remaining contestants take to the stage to perform for the judges and audience at home, all in the hope of sealing their place in the competition for another week.

The 10 remaining contestants take to the stage to perform for the judges and audience at home, all in the hope of sealing their place in the competition for another week.

The results of last night's live show are revealed. One Republic and Little Mix perform live.

The 11 remaining acts compete for the public vote, including Girl band Four Of Diamonds, arriving late to the show to replace axed duo Brooks Way.

In the first live show of the year 11 of the 12 remaining acts compete for the public vote due to the last-minute disqualification of the boy group Brooks Way.

The Judges' Houses stage of the competition continues. With Louis and the groups in Ibiza, Sharon and the overs in LA, Nicole and the boys in Nice, and Simon and the girls in Malibu, which 12 acts will be chosen to make it through to the live shows next week?

The remaining acts jet off to the Judges' Houses, where they have a final chance to make a good impression. Louis hosts the groups in Ibiza, Sharon takes the overs to her LA home, Nicole is in Nice with the boys, and Simon brings the girls to Malibu. After nominating Wildcard acts to add to each others' categories, the judges face more tough decisions. Helping Louis with his choices are 2014 X Factor runner-up Fleur East and Britain's Got Talent judge Alesha Dixon. Sharon enlists the help of Robbie Williams, Nicole is joined by top DJ Calvin Harris, and Simon recruits Spice Girls Mel B and Emma Bunton

The Six Chair Challenge concludes. The judges must decide on the final six acts in each category to take through to the Judges' Houses stage. None of the hopefuls who secure a seat are safe until everyone in their category has sung. Who will have what it takes to keep hold of their seat and move one step closer to a coveted place in the live shows?

The Six Chair Challenge returns. The judges must decide on the final six acts in each category to take through to the Judges' Houses stage. None of the hopefuls who secure a seat are safe until everyone in their category has sung. Who will have what it takes to keep hold of their seat and move one step closer to a coveted place in the live shows?

For Boot Camp the judges put those hopefuls who made it past the initial auditions through a series of dancing and singing challenges, aimed at weeding out the less-talented candidates.

The room auditions conclude. Boot Camp opens with a party night.

The room auditions continue. Expect knock-out vocals and big personalities as the auditionees find themselves face-to-face in front of the judges in a very personal setting, tackling the first stage in their path to secure a life changing record contract.

The two acts left battling for the crown perform what will become the winner's single in front of 10,000 people at Wembley Arena, before they find out who has won this year's competition. Plus there are performances from top international guest stars.

The three finalists assemble for the first of this weekend's live Grand Final shows. The would-be pop-stars must first make it through two more showdowns, as judges Simon, Rita, Cheryl, and Nick are once again called upon to deliver their verdict on each act's singing prowess. The act with the lowest public-vote figures will face an early exit from the contest this evening, bowing out in third place. By the end of tomorrow evening, one of the two remaining acts will claim their place in the spotlight as this year's winner.

Che Chesterman, Lauren Murray, Louisa Johnson, and Reggie & Bollie return to the stage as Caroline and Olly present the results of the weekend's viewers' vote. Only three of the semi-finalists will be able to progress to next week's final, meaning one unlucky act will face bowing out of the contest ahead of the climax. Tonight's show also features a group performance, as well as a performance by Sia.

As ever, Simon, Nick, Rita, and Cheryl are on hand to judge each contestant's skills with the mic, and presenters Caroline and Olly offer the singers much-needed moral support on-stage. Following today's show, the least successful contestants face another tense sing-off tomorrow, after which one unlucky act will be eliminated, leaving the finalists to progress through to the contest's last round next weekend.

Caroline and Olly present the results of the viewers' votes, and reveal whether Che Chesterman, Lauren Murray, Louisa Johnson, 4th Impact, or Reggie & Bollie are guaranteed a place in next week's semi finals. The two lowest scoring acts will be asked to compete against each other in a sing-off to impress judges Simon, Cheryl, Rita, and Nick, with the loser being eliminated from the contest. Plus, country singer and American Idol winner Carrie Underwood performs her new single �Heartbeat�.

Simon, Nick, Rita, and Cheryl are once again on hand to appraise the remaining competitors' talents, and presenters Caroline and Olly offer the singers much-needed moral support on-stage. As always, tomorrow's show will see yet another of the acts eliminated following another tense sing-off.

Caroline and Olly present the results of the viewers' vote, revealing which acts are safely through to the next round. The two lowest scoring contestants compete in a sing-off in front of judges Nick, Rita, Cheryl, and Simon to decide who gets eliminated. Plus, Olly performs his latest single �Kiss Me� and Nathan Sykes from the Wanted sings his solo track Over and �Over Again�.

Caroline and Olly present as the remaining would-be stars face their fourth live show. This week, the contestants' performances are themed around �love and heartbreak�, with each choosing a popular song about the pain of being in love. Tomorrow's show will see yet another act eliminated following a tense sing-off. Plus, Ed Sheeran and Rudimental take to the stage with their hit single Lay It On Me.

Caroline and Olly present the results of last night's live show, revealing which acts are safely through to the next round. The two lowest scoring scoring contestants compete in a sing-off in front of judges Nick, Rita, Cheryl, and Simon, to decide who gets to stay in the competition and who gets eliminated. With performances by One Direction and Jess Glynne.

Caroline and Olly present as the remaining contestants face their third live show, in which they enter Movie Week. For tonight's performances, the singers must tackle hit songs from major films, once again demonstrating their talent to judges Simon, Cheryl, Nick, and Rita, in the hopes of surviving another round, and taking a step closer to this year's final.

Caroline and Olly present the results of last night's viewers' vote. The lowest scoring acts are challenged to compete in a sing-off to win the approval of judges Nick, Rita, Cheryl, and Simon - with one of them being eliminated from the contest at the end of tonight's show.

The remaining acts line up for the second stage of the nerve-racking live shows. Caroline and Olly present as the competitors receive another chance to demonstrate their talent in the hopes of claiming a place in the live final later this year. Simon, Cheryl, Nick, and Rita are on hand to appraise the would-be stars, and tomorrow's show will see yet another act eliminated following a tense sing-off.

Caroline and Olly present the results of last night's live shows, revealing which acts have scored the lowest number of votes. These performers will be challenged to take part in a sing-off in front of judges Nick, Rita, Cheryl, and Simon, with the losers facing elimination from the contest. Plus, Little Mix perform �On My Mind�.

Caroline and Olly present the first of this year's live shows. The 12 remaining acts compete for the chance to make it through to the live final later this year, hoping to impress the judges enough to stay on the show. Simon has the Overs, Cheryl the Groups, Nick the Boys, and Rita the Girls. However, the standard is high, which is sure to cause drama and disagreements among the judges, and tomorrow's show will see the first act eliminated after a sing-off.

Olly and Caroline present the next stage of the talent show, as the 24 acts to make it into the four categories - Overs, Groups, Girls, and Boys - complete their training in the judges' house and return to the London studio to perform once again in the hope of impressing the judges and the public. At the end of the show, half the acts featured will be eliminated from the contest.

The beginning of the judges' houses stage, which sees the remaining 24 acts jet off to glamorous destinations around the world to sing for a place in the live shows. As usual the judges are assisted by industry experts - Simon by One Direction heart-throb Louis Tomlinson, Cheryl by chart star Jess Glynne, Rita by US sensation Meghan Trainor, and Nick by leading producer Mark Ronson. However, unlike in previous years, the hopefuls don't get the news straight away. Instead they have had to wait a few weeks until this weekend, when back in the studio the judges will finally choose their finalists live.

Caroline and Olly present the final stage of the six chair challenge, featuring contestants from the Overs category. Judges Simon, Rita, Nick, and Cheryl must each select six performers to go through to the judges' houses stage - but have the freedom to change their mind at any point, so even those who win a place are not safe until the very end.

Olly and Caroline present the climax of the Six Chair Challenge. Judges Rita, Simon, Cheryl, and Nick must each select six acts to take a place in the live shows. However, contestants who put in an impressive performance are not out of the woods, as the judges have the freedom to change their minds at any point in the show.

The first stage of this year's three-part Six Chair Challenge arrives, in which judges Simon, Rita, Nick, and Cheryl are given the opportunity to pick six acts to champion through to the later stages of the contest. The format has the potential to generate a great deal of drama in the studio, as the judges have the right to switch acts in and out of their line-up whenever they choose. Girl group 4th Power, 17-year-old singer Louisa Johnson, and youth worker Monica Michael are among the would-be stars who have already secured a place in this round of the contest, but it remains to be seen whether any of them will be able to win over the panel and progress further.

The contestants face the next stage of Boot Camp as they perform for judges Nick, Rita, Cheryl, and Simon in the grand surroundings of a country house. If they succeed in impressing the panel, they stand to win one of the coveted places in the six chair challenge and be one step closer to victory.

The first of two boot-camp programmes sees the successful contestants from the arena auditions stage undertake a series of singing challenges when they are put through their paces by judges Simon, Cheryl, Rita, and Nick at a grand country house.

Caroline and Olly present coverage as the audition stage concludes, with another batch of applicants performing in front of judges Simon, Cheryl, Nick, and Rita, as well as an arena audience of thousands, in the hope of winning one of the coveted places at Boot Camp.

Caroline and Olly host the next stage of the talent show. Would-be contestants sing in front of an arena audience of thousands and judging panel Simon, Cheryl, Nick, and Rita, in the hope of winning one of the few coveted places at Boot Camp.

Olly and Caroline host proceedings as the audition stages continue, as more hopeful contenders seek to win over the panel and secure a place at Boot Camp. Doing so means they must face the collective criticism of Simon, Cheryl, Nick, and Rita, along with the arena audience.

Caroline and Olly present further coverage of the audition process, as another batch of applicants perform in front of judges Simon, Cheryl, Nick, and Rita, as well as an arena audience of thousands, in the hope of winning one of the coveted places at the Boot Camp.

Olly and Caroline host proceedings as the audition stages continue, with more hopeful contenders seeking to win over the panel and secure a place at the Boot Camp. Doing so will first mean they must face the collective criticism of Simon, Cheryl, Nick, and Rita, along with the gathered arena audience.

Caroline and Olly present more coverage of the audition process. Another batch of applicants perform in front of judges as well as an arena audience of thousands, in the hope of winning one of the coveted places in the series' Boot Camp.

The two acts left battling for the crown perform what will become the winner's single in front of 10,000 people at Wembley Arena, before they find out who has won this year's competition.

Fleur East, Ben Haenow, and Andrea Faustini head to Wembley Arena to battle it out in the first part of the final. At the end of the programme, Dermot O'Leary announces the results of the public vote and the contestant in third place is eliminated. There are also performances by Take That, Ed Sheeran, and �All About That Bass� singer Meghan Trainor.

The time has come for the remaining contestants to show the voting public why they deserve a place in next week's grand final.

The acts each perform two songs - one of them chosen by the public - as they battle for places in next week's semi-final.

The remaining seven contestants battle it out in Elton John v Whitney Houston week, and one of them will be eliminated at the end of the show. There's also a live performance by French DJ David Guetta.

The remaining acts get into the swing of things for the return of Big Band week. Battling to win praise from the judges and viewers' votes, they'll be hoping to sound better than ever with the support of live musicians, as they take on old classics and give modern pop songs a jazz twist.

The would-be chart stars perform hits from the back catalogues of two legendary music icons for Michael Jackson v Queen week.

The remaining acts get into the Halloween spirit for Fright Night, a show that's almost certain to include Michael Jackson's Thriller, but also a few unexpected song choices to keep things interesting. It's now the fourth week of the live studio rounds and Simon Cowell has decided to shake things up with a shock twist - the act with the lowest number of votes will be revealed in this show, and they will be eliminated straight away.

The remaining acts relive classic big-screen moments as they take on songs from the movies, battling to win votes from millions of viewers at home.

The remaining contestants perform tracks from the 1980s in the second live studio round.

The contestants perform a selection of classic hits in a Number Ones-themed show. Simon Cowell mentors the over-25s (Jay James, Fleur East, and Ben Haenow), Cheryl looks after the girls (Lauren Platt, Chloe Jasmine, and Stephanie Nala), Mel B has the boys (Andrea Faustini, Jake Quickenden, and Paul Akister), and Louis Walsh is in charge of the groups (Blonde Electra, Only the Young, and the newly formed One Direction). The wildcards are also revealed, bringing the total number of acts for the live shows up to 16.

As the judges' houses stage concludes, 24 acts pack their bags and prepare to head home, while the dozen who have made it to the live shows cope with the pressure as the real work begins.

As the judges' houses stage continues, the remaining 24 acts perform in glamorous destinations around the world. Across the weekend, the over 25s try to impress Simon Cowell and Sinitta in Los Angeles, Cheryl is with Tinie Tempah in the French city of Nice to audition the girls, Emma Bunton helps Mel B select the best boys in Cancun, Mexico, and Louis Walsh heads to Bermuda with Tulisa and the groups.

As the judges' houses stage begins, the remaining 24 acts jet off to glamorous destinations around the world for their latest performances. Across the weekend, the overs perform for Simon Cowell and Sinitta in Los Angeles, Cheryl Fernandez-Versini is with Tinie Tempah in the French city of Nice to audition the girls, Emma Bunton helps Mel B select the best boys in Cancun, Mexico, and Louis Walsh heads to Bermuda with Tulisa and the groups.

The latest trip to boot camp concludes, as the ever-hopeful contestants battle it out in the last six-chair challenge to win the last few places to sing at the judges' houses.

The six-chair challenge continues in the second of three boot-camp shows, in which the hopefuls battle it out for one of six places at the judges' house stage.

In the first of three boot camps editions, the six-chair challenge returns. Simon, Louis, Mel B, and Cheryl must decide on the final six acts they will take to the judges' houses stage. Making the decisions are Simon (overs), Cheryl (girls), Mel B (boys) and Louis (groups).

Having impressed the judges in the audition room, the aspiring pop stars now have the more daunting challenge of captivating a huge audience at Wembley Arena, as Simon, Cheryl, Mel B, and Louis make their final selections for boot camp.

Having proved themselves in front of the judges, the hopefuls must now perform for an audience of almost 5,000 as the Wembley Arena auditions continue.

Having proved themselves in front of Simon, Cheryl, Mel B, and Louis, the hopefuls must now perform in front of an audience of almost 5,000 as the Wembley Arena auditions continue.

The acts who wowed the judges at the closed-room auditions now face round two - appearing not just in front of judges Simon Cowell, Cheryl Fernandez-Versini, Mel B, and Louis Walsh, but also an audience of nearly 5,000 people at the more intimidating setting of Wembley Arena. With limited places available at boot camp, the singers must prove their first performances weren't just a one-off.

The search for a superstar continues as the judges give their verdicts on another line-up of hopefuls entering the audition room.

As the closed-room auditions continue, more aspiring pop stars join the race for a record deal.

The closed-room auditions continue as more solo singers and groups attempt to prove they are worthy of a record contract. For those who impress the judges move on to the second round of performances at Wembley.

The Judges Reveal who they have chosen to be in the Top 12

The remaining 24 Contestants Sing for a spot in the Final 12 at Judges Houses

The Challenge is still on from last night the Judges must only Select 6 contestants to take a chair and to move onto Judges Houses. No one is safe even if they have a chair until all contestants in their group have sung. Continuation of Over 25's, as well as the Groups and Boys

The Contestants are split into there groups, Boys, Girls, Over 25's, Groups. The Judges are given their Categories and now must only Select 6 to take a chair and to move onto Judges Houses. No one is safe even if they have a chair until all contestants in their group have sung. First up is The Girls and the Over 25's

The Final Set of Contestants who got through from last night now preform in the Arena to get through to Boot Camp

Final set of Auditions Held in the Rooms with just the 4 Judges and Contestants

The 3rd Set of Contestants who got through from last night now preform in the Arena to get through to Boot Camp

3rd set of Auditions Held in the Rooms with just the 4 Judges and Contestants

The 2nd Set of Contestants who got through from last night now preform in the Arena to get through to Boot Camp

2nd set of Auditions Held in the Rooms with just the 4 Judges and Contestants

The Contestants who got through from last night now preform in the Arena to get through to Boot Camp

Group Performance: "Ain't Nobody" Musical Guests: Labrinth feat. Emeli Sand� ("Beneath Your Beautiful") and JLS ("Hottest Girl in the World")

Group Performance: "Somebody That I Used to Know" Musical Guests: Rebecca Ferguson ("Backtrack") and Taylor Swift ("We Are Never Ever Getting Back Together")

Group Performance: "Read All About It (Pt. III)" Musical Guests: Leona Lewis ("Trouble") and Ne-Yo ("Let Me Love You (Until You Learn to Love Yourself)")

Theme: Heroes night (songs inspired by the Olympic Games) The result of the wildcard vote is revealed before the performances as 12 Become 13 Special Guests: Olympians Laura Trott, Lizzie Armitstead, Danielle King, Joanna Rowsell, Nicola Adams, Luke Campbell, Jade Jones, Tom James, Pete Reed, Alex Gregory and Charlotte Dujardin appeared as guests in the audience, and One Direction made a brief guest appearance on Saturday's show, being interviewed by O'Leary after the first performance and giving advice to the contestants.

Dermot O'Leary reveals the results of the public vote. The two acts left battling for the crown perform what will become the winner's single in front of 10,000 people at Wembley Arena, before they find out who has won this year's competition. Plus there are performances from top international guest stars. With judges Gary Barlow, Kelly Rowland, Tulisa Contostavlos and Louis Walsh.

Dermot O'Leary presents the final of the singing competition from Wembley Arena. The remaining contestants must perform in front of a crowd of 10,000 in a bid to win viewers' votes and claim the life-changing prize of a recording contract. There are also performances from top international guest stars. With judges Gary Barlow, Kelly Rowland, Tulisa Contostavlos and Louis Walsh.

Celebrity performers: Justin Bieber ("Mistletoe") Kelly Rowland ("When Love Takes Over" / "Down for Whatever" / "Commander") Group performance: "Hold On"

Themes: Motown, "the song to get you to the final"

Celebrity performers: Olly Murs featuring The Muppets ("Dance with Me Tonight") Jessie J ("Who You Are") Group performance: "Wishing on a Star" (with JLS and One Direction as their charity single)

Themes: Guilty pleasures, Musical Heroes

Celebrity performers: Rebecca Ferguson ("Nothing's Real But Love") Rihanna ("We Found Love") Group performance: "When You're Gone" (with Bryan Adams)

Theme: Songs from films (billed as "movie week")

Celebrity performers: One Direction ("Gotta Be You") Lady Gaga ("Marry the Night") Group performance: "Walking on Sunshine"

Theme: Songs by Lady Gaga or Queen (billed as "Lady Gaga vs. Queen")

Celebrity performers : JLS ("Take a Chance on Me") Florence and the Machine ("Shake It Out") Group performance: "Price Tag"

Theme: Dancefloor fillers

Celebrity performers: Cher Lloyd ("With Ur Love") Nicole Scherzinger ("Try with Me")

Theme: Halloween

Celebrity performers: Kelly Clarkson ("Mr. Know It All") Professor Green/Emeli Sand� ("Read All About It") Bruno Mars ("Runaway Baby")

The 10 remaining acts battle it out to win the public's votes and stay in the competition.

Join host Dermot O'Leary live as the 11 remaining acts find out the results of the public vote. The two acts with the lowest number of votes must sing for survival in the final showdown. Then it is up to the judges to decide who stays to sing another day and who leaves the competition

Watch all 11 acts strut their stuff as they make their claim to The X Factor throne. Tonight the competition really hots up, and Whitney Houston is a special guest tomorrow night.

Dermot O'Leary hosts the live results show in which the finalists find out who is going home. There will be tears and drama as no-one wants to leave the competition in the first week. Plus 2010 winner Matt Cardle returns with the first-ever performance of his new single.

After weeks of gruelling auditions, the remaining 16 contestants have reached the live rounds. Dermot O'Leary presents the first of the live shows, in which the finalists perform for the judges, the audience and the viewers at home. Gary Barlow is mentoring the boys, Kelly Rowland is looking after the girls, Louis Walsh is helping the over-28s and Tulisa Contostavlos takes charge of the groups.

In four locations around the world, it is make or break time for the remaining hopefuls as they find out whether or not they have made it to the live shows. Judges Kelly Rowland, Tulisa Contostavlos, Louis Walsh and Gary Barlow have some big decisions to make as they work out who they are sending to the final 16.

The remaining acts jet off around the world to the judges' homes, where they will battle it out for a place in the final 16. Each panellist is joined by a celebrity guest mentor to help them whittle down the list of acts. Who will make it through to the live shows?

Dermot O'Leary presents the seventh set of auditions. Judges Gary Barlow, Kelly Rowland, Tulisa Contostavlos and Louis Walsh are on the lookout for a potential star of the future, but will any of today's contestants live up to the panel's high expectations?

Dermot O'Leary presents the sixth set of auditions. Judges Gary Barlow, Kelly Rowland, Tulisa Contostavlos and Louis Walsh are on the lookout for a potential star of the future, but will any of today's contestants live up to the panel's high expectations?

Dermot O'Leary presents the fifth set of auditions. Judges Gary Barlow, Kelly Rowland, Tulisa Contostavlos and Louis Walsh are on the lookout for a potential star of the future, but will any of today's contestants live up to the panel's high expectations?

Dermot O'Leary presents the fourth set of auditions from Britain's biggest singing competition. Judges Louis Walsh, Kelly Rowland, Tulisa Contostavlos and Gary Barlow continue their star search across the country, but will today's crop of hopeful performers be able to impress them? Dermot is on hand to celebrate or commiserate with the contestants.

Dermot O'Leary hosts the third set of auditions in the search for a new pop sensation. Judges Louis Walsh, Gary Barlow, Kelly Rowland and Tulisa Contostavlos are on the hunt for outstanding talent, but will they find what they are looking for? This week, the tryouts move to a new city, where hopeful performers have lined up for their chance to sing for the panel. Dermot is on hand to celebrate or commiserate with the contestants.

Dermot O'Leary hosts the second round of auditions, which come from London and Liverpool. Louis Walsh and new judges Gary Barlow, Kelly Rowland and Tulisa Contostavlos are hoping to find talented future stars, but have this week's crop of hopefuls got what it takes to impress them? Strutting their stuff this week are a 45-year-old from Harrow who hopes that this is his chance to shine, a 20-year-old Romeo who professes his love for Kelly and a band whose line-up was finalised only weeks ago. Can they hit the right note with the panel?

Britain has been voting for 24 hours and the finalists face a nail-biting wait to find out the results of the public vote. Joining them for the biggest pop event of the year are judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh as well as more top international guest stars. The two finalists left battling for the crown after the third-placed act has gone home will perform what will become the winner's single. Then it is the moment that everybody has been waiting for as Dermot O'Leary announces the winner of The X Factor 2010.

The finalists go head to head as they sing live in a bid to win this year's competition and bag a life-changing recording contract. Also battling it out are judges Simon Cowell, Louis Walsh, Dannii Minogue and Cheryl Cole, while host Dermot O'Leary is on hand to keep the warring parties at bay. Plus there will be performances by some amazing international guest stars. The voting lines open tonight as the countdown starts - tomorrow night, one act will win the X Factor.

Dermot returns with the results of the ninth public vote of the series. Including live performances from the cast of hit US series Glee, former X Factor winner Alexandra Burke and chart-topping group the Black Eyed Peas.

The remaining five finalists perform live for the ninth time as the competition reaches the semi final stage. Each act has to perform twice with tonight's themes being Club Classics and a Get Me To The Final song.

Dermot returns with the results of the eighth public vote of the series which is a double elimination this week. The Wanted, Justin Bieber and Nicole Scherzinger perform live on stage.

The remaining finalists perform live for the eighth time. This week's theme is rock songs and everyone has to perform twice.

Dermot returns with the results of the seventh public vote of the series. Olly Murs performs his new single live on stage. All twelve finalists perform live on stage this year's charity single.

The remaining 8 finalists perform live for the seventh time with this week's theme being Beatles songs.

It is time for the 9 remaining acts to find out the result of the public vote. The two acts with the lowest numbers of votes must sing for survival in the final showdown. Then judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh will decide who stays in the competition and who is sent home.

The 9 remaining finalists perform live for the sixth time. This week's theme is Elton John songs.

Dermot O'Leary hosts the live results show. The remaining performers will be on tenterhooks as the results of the public vote are revealed, as the two acts with the lowest number of votes must sing for their survival in the final showdown.

The 10 remaining finalists perform live for the fifth time with this week's theme being American anthems.

Dermot O'Leary hosts the all-new Sunday night X Factor results show, as the 11 acts find out the results of the public vote. The two with the lowest number of votes will sing for survival in the final showdown, then it is up to the judges to decide who stays to sing another day and who leaves the competition

The 11 remaining finalists perform live for the fourth time with show having a Halloween theme this week.

Join Dermot O'Leary live for the results of the public vote. The two acts with the lowest number of votes must perform again in the final showdown. Then judges Louis Walsh, Dannii Minogue, Simon Cowell and Cheryl Cole will decide who stays to sing another day and who leaves the competition.

The 12 remaining finalists perform live for the third time with the theme being Guilty Pleasures.

Join host Dermot O'Leary live as the 14 remaining acts find out the results of the public vote. The two acts with the lowest number of votes must sing for survival in the final showdown. Then it is up to the judges to decide who stays to sing another day and who leaves the competition.

The 14 remaining finalists perform live for the second time with the theme being Heroes.

Dermot O'Leary reveals how the public has voted in the first live results show. The acts with the fewest number of votes must sing again in the final showdown, and then it is up to the judges to decide who will be leaving the competition. Plus last year's winner Joe McElderry gives the first performance of his new single.

Tonights theme: Number one Singles. Dermot O'Leary hosts the first of the live shows. Thousands of singers auditioned across the UK and their numbers have been whittled down so that now only the 16 finalists remain to battle it out for a life-changing record contract. Each finalist is mentored by one of the judges - Dannii Minogue returns from maternity leave to support the boys, Cheryl Cole looks after the girls, Simon Cowell is mentoring the groups and Louis Walsh is helping the contestants in the new over-28s category. Tomorrow night, the first act will leave the competition.

The judges reveal who has made it through to the live finals.

Those who have made it through travel to the judges houses where they have one last chance to impress before the judges decide who they will put through to the live stages of the competition.

It is the second of this weekend�s bootcamp double bill. The solo performances continue as one by one, the acts take to the biggest stage yet. No-one can afford to slip up as they face Simon Cowell, Louis Walsh and guest judge and Pussycat Doll Nicole Scherzinger. Tonight, the judges decide who they believe could go all the way as they reveal who makes it to judges� houses. Host Dermot O� Leary will be there every step of the way as we find out who makes it through and who heads home.

The first of this weekend�s bootcamp double bill, as the cream of the crop from the nationwide auditions head to London. Over 200 acts will be tested to the limit at Wembley Arena in the biggest bootcamp ever. They will face choreography, vocal coaching and styling sessions as they try to stand out from the crowd. Those that make it through the first challenges will get to perform centre stage in front of Simon Cowell, Louis Walsh and guest judge and Pussycat Doll Nicole Scherzinger. Host Dermot O�Leary will be there at every step of the way as we find out who makes it through and who heads home.

With Cheryl Cole still absent, the contestants in Manchester have one last chance to impress Simon Cowell, Louis Walsh and guest judge Nicole Scherzinger in the final audition show before boot camp begins next week.

In the first of two shows from Manchester bringing the 2010 auditions to a close, Simon Cowell and Louis Walsh are joined by Pussycat Dolls lead singer Nicole Scherzinger on the judges' panel, but have to make do without Cheryl Cole, who was recovering from malaria when this double bill was filmed.

Pixie Lott helps Simon Cowell, Cheryl Cole and Louis Walsh put through the best solo acts and groups as the auditions reach Cardiff, where last year the judges discovered Lucie Jones and Lloyd Daniels, who would go on to reach the live finals.

Guest judge Natalie Imbruglia helps Simon Cowell, Cheryl Cole and Louis Walsh select the best solo singers and groups at the auditions in Birmingham, where highlights include a female duo whose attitude fails to impress Simon. Plus, more from London, where a pair of twins from Paris bring back memories of Jedward for the judges.

Guest judge Katy Perry helps Simon Cowell, Cheryl Cole and Louis Walsh select the best solo singers and groups in Dublin as the auditions move to Louis's native Republic of Ireland for the first time since 2006.

Now the moment the nation has been waiting for arrives, as Dermot O'Leary reveals who the public has crowned 2009 X Factor champion. Joining Dermot and the remaining two acts are judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh, as well as more international guest stars. The final two acts each perform what will become the winner's first single. Then at last the suspense is over and we discover which act has taken the prize.

It is the final! Hundreds of thousands of hopefuls came to the nationwide auditions, but now only three acts remain to battle it out for the title - and one will be going home today. At stake is the biggest prize in pop - a life-changing record contract and the release of their debut single. Judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh are also joining in the race to the finish line, as they cross their fingers for their own acts. Plus some amazing international guest stars will be appearing. Hosted by Dermot O'Leary.

Lady Gaga and Janet Jackson perform in tonight's show, as Dermot O'Leary reveals which performers will have to fight for survival in a sing-off. The bottom two acts will face the judges again, and one will be eliminated, losing their chance of competing in next week's final. Who is going home today?

Dermot O'Leary hosts the semi-finals. The four remaining acts - Danyl, Joe, Olly and Stacey - must perform two songs each, and it will be up to them to really sing their hearts out if they are to be in with a chance of making it to next week's final. Judges Cheryl Cole, Simon Cowell, Dannii Minogue and Louis Walsh will be crossing their fingers for their favoured acts. Who will impress the panel and the voters at home?

Dermot O'Leary reveals the results of the latest public vote. The two acts with the fewest votes must take part in a sing-off, and then judges Simon Cowell, Dannii Minogue, Louis Walsh and Cheryl Cole decide who stays to compete in the quarter-finals, and who must leave for good. Also featuring live performances from Rihanna and Alicia Keys.

It is the eighth live show, and with only five acts remaining, the pressure is really on to make an impression on both the judges and the voters at home. Panellists Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh will be rooting for the performers in their categories, while host Dermot O'Leary is on hand to deal with all the tears and triumphs.

It is time to reveal the results of the public vote. The two acts with the fewest votes will have to perform again in a sing-off, and then it is up to the judges to decide who stays in the competition and who is eliminated. Plus there are live performances from Mariah Carey and Susan Boyle. Hosted by Dermot O'Leary.

There are only six acts remaining in the competition, and today they must sing live again in a battle to win the biggest prize in pop. Also fighting it out are judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh, who are each mentoring one category of singers. Host Dermot O'Leary will be on hand to deal with all the tears and triumphs.

It is time for the seven remaining acts to find out the result of the public vote. The two acts with the lowest numbers of votes must sing for survival in the final showdown. Then judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh will decide who stays in the competition and who is sent home. Plus there is a guest performance by Colombian pop superstar Shakira. Hosted by Dermot O'Leary.

Only seven acts remain and the competition will be getting fiercer than ever as the performers battle it out to stay in the running. Judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh will be on the edges of their seats as they support the singers they are mentoring, while host Dermot O'Leary is on hand to deal with all the tears and triumphs. Who will impress the judges - and the voting public - today?

Dermot O'Leary hosts the live results show. The remaining performers will be on tenterhooks as the results of the public vote are revealed, as the two acts with the lowest number of votes must sing for their survival in the final showdown. Who will judges Simon Cowell, Dannii Minogue, Cheryl Cole and Louis Walsh choose to send home? Plus performance from Leona Lewis and the Black Eyed Peas.

The battle for the crown continues as the eight remaining acts step onto Britain's biggest stage for the fifth live show. Each of the performers will be hoping to impress the voting audience at home as well as judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh. Host Dermot O'Leary will be on hand to deal with the war of words as the judges give their views on each performance and defend their singers. Next time, one act will be leaving the competition.

Dermot O'Leary hosts the all-new Sunday night X Factor results show, as the nine acts find out the results of the public vote. The two with the lowest number of votes will sing for survival in the final showdown, then it is up to the judges to decide who stays to sing another day and who leaves the competition. Plus Bon Jovi and JLS perform.

All the performances and much more from The X Factor's very first Rock week.

Join Dermot O'Leary live for the results of the public vote. The two acts with the lowest number of votes must perform again in the final showdown. Then judges Louis Walsh, Dannii Minogue, Simon Cowell and Cheryl Cole will decide who stays to sing another day and who leaves the competition. Plus Michael Bubl� and Westlife are live on stage.

The 10 remaining acts battle it out to win the public's votes and stay in the competition. Today's theme is Big Band, which means the contestants must face the challenge of singing with a full orchestra. How will they get on? Judges Simon Cowell, Cheryl Cole, Dannii Minogue and Louis Walsh will be keen to support the acts they are mentoring, and host Dermot O'Leary is on hand to keep everyone going as the tension mounts.

Join host Dermot O'Leary live as the 11 remaining acts find out the results of the public vote. The two acts with the lowest number of votes must sing for survival in the final showdown. Then it is up to the judges to decide who stays to sing another day and who leaves the competition. Plus the legendary Whitney Houston performs live, in her first UK TV appearance in 12 years.

Watch all 11 acts strut their stuff as they make their claim to The X Factor throne. Tonight the competition really hots up, and Whitney Houston is a special guest tomorrow night. Louis Walsh will be absent from both shows as he attends Stephen Gately's funeral in Dublin.

It's a brand new live Sunday night results show as the final 12 discover the outcome of the public vote. The two acts with the lowest number of votes will sing for survival in the final showdown. Then it is up to the judges to decide who stays to sing another day and who is out of the competition. Last year's winner Alexandra Burke gives the first performance of her new single - and in a world exclusive Robbie Williams is back performing live!

It's the moment of truth for the final 12 as they perform live in front of the nation... with the first of two live shows as the final 12 sing live - and the judges each mentor one category of singers. Simon Cowell has the over 25s, Cheryl Cole has the boys, Dannii Minogue has the girls and Louis Walsh has the groups. Host Dermot O'Leary will be on hand to deal with the war of words as the judges give their views on each performance and defend their acts - one of which will leave the competition.

It is make or break time for the 24 remaining hopefuls - at the end of today's show they will find out whether they have been chosen for the live stages. There are only three places in each category, so judges Simon Cowell, Dannii Minogue, Cheryl Cole and Louis Walsh have some big decisions to make. Host Dermot O'Leary is on hand to support the contestants.

The X Factor goes global, as the 24 remaining acts jet off around the world to the judges' houses. Simon is at his home in Los Angeles, while Cheryl is in Marrakech, Louis is in Italy and Dannii is in Dubai. The judges are joined by Kylie Minogue, Will Young, Ronan Keating and Sinitta, who will be helping them make the tough decisions needed to whittle down the contestants to the final 12. Host Dermot O'Leary is on hand to support the singers as they face their biggest performance so far.

Join host Dermot O'Leary for the second in our bootcamp weekend double bill. The 50 remaining acts must perform again in front of an audience of thousands. Each singer has been able to practise overnight, and today is their last chance to impress judges Simon Cowell, Dannii Minogue, Cheryl Cole and Louis Walsh. The panel must now start choosing the performers they believe can go all the way. Who will make it into the final 24?

The successful auditionees head to London's Hammersmith Apollo for the biggest bootcamp ever. Judges Simon Cowell, Dannii Minogue, Louis Walsh and Cheryl Cole will be putting 200 acts through their paces. Who will be able to handle the pressure and stand out from the crowd, and who will be heading home? After this first challenge, only 50 acts can go through to the next bootcamp stage. Host Dermot O'Leary is on hand to offer condolences to the unlucky and celebrate with the chosen few.

It is the last leg of this year's auditions, and we will see the final group of hopefuls from the record number who applied. Judges Simon Cowell, Dannii Minogue, Cheryl Cole and Louis Walsh are on a whistle stop tour of Britain to find any other potential winners out there. The wannabes must perform in front of the judges and a large studio audience, so they will need a strong constitution. But host Dermot O'Leary will be there to offer a shoulder to cry on if they need it. Who will make it through?

With only two more auditions to go before the bootcamp stage and the assignment of the categories, judges Simon Cowell, Louis Walsh, Dannii Minogue and Cheryl Cole continue the nationwide search for a star. Host Dermot O'Leary is on hand to celebrate success or console those who are sent home.

Britain's biggest and best open talent competition continues with some more good, bad and unbelievable auditions from across the country. The wannabes will be performing in front of a studio audience and the panel, so they must bring an iron nerve. Who will impress judges Simon Cowell, Dannii Minogue, Cheryl Cole and Louis Walsh? Host Dermot O'Leary is on hand to celebrate success or mop up the tears.

The auditions for Britain's biggest talent competition continue, as more wannabe popstars perform in front of the studio audience and judges Simon Cowell, Louis Walsh, Dannii Minogue and Cheryl Cole. As they think ahead to the mentoring stage, all the judges will be hoping for some amazing singers with real star quality. Meanwhile host Dermot O'Leary is on hand to celebrate or commiserate with the contestants.

There are only three acts remaining in this week's grand final. After auditions, boot camp, the mentors' houses and nine live shows, the three acts remaining in the competition sing for one last time for the audience vote. The act with the highest number of votes will be crowned The X Factor champion of 2008 winning a �1m recording contract with Simon Cowell. Dannii Minogue is the only judge with no acts left in the competition.

With only four acts remaining in the competition, we reach the 9th live show of the series. The contestants must each perform 2 songs for the viewers' votes. The 2 acts with the lowest number of votes will have to sing again judges Simon Cowell, Louis Walsh, Cheryl Cole and Dannii Minogue who, for the last time, will choose an act to send home.

Theme: Songs by Britney Spears and American Classics Song performed by celebrity guests: "Womanizer" (Britney Spears), "7 Things" (Miley Cyrus)

Five acts remain in the competition and the acts must now perform 2 songs each. This week the theme is American Classics as the contestants perform for the viewers' votes. The two acts with the lowest number of votes must then sing again for the judges Simon Cowell, Louis Walsh, Cheryl Cole and Dannii Minogue. Hannah Montana star Miley Cyrus appears in this episode.

Celebrity Guest: Leona Lewis Song performed by celebrity guest: "Run"

Theme: Best of British

Theme: Mariah Carey Celebrity Guest: Mariah Carey Song performed by celebrity guest: TBA

Dermot O'Leary hosts the fifth live show of the series. This week, the eight remaining acts meet Mariah Carey and must perform her songs for the judges and the viewers. The viewers will then vote for their favourite and the two acts with the lowest number of votes will sing again for the judges who will choose to save one act and send the other home.

Theme: Disco Celebrity Guest: Will Young Song performed by celebrity guest: Changes

Down to nine acts and the contestants must sing again for a place in next week's show. This week they must sing classic disco songs for the judges and the viewers at home. The viewers will then vote for their favourite and the two acts with the lowest number of votes will be forced to sing again for the judges who will then decide to save one act.

The finalists performed a cover version of the Mariah Carey song "Hero" on behalf of the Help for Heroes charity. This song will be released as a download on Sunday 26 as a download and Monday 27 physically.

The 10 remaining acts return to perform live for the third time. This week each act has to perform a Big Band song. The judges give their verdicts on what they have heard. At the end of the show the phone lines are opened for this week's public vote.

More hopefuls good and bad try and impress the judges and again a place in the next round of the competition. Kelly's father is upset with Simon when he refuses to put his daughter through to the next round. Natasha Benjamin manages to impress all the judges after they hear her history and they her her sing.

More hopefuls good and bad try and impress the four judges in a hope of making it through to the next round of the competition. Dermot is on hand to talk to those who make it through and also to offer comfort to the less successful.

The auditions come from Birmingham and Cardiff as more hopefully try and impress the judges. Paris who at 14 last year impressed all the judges but was too young for the competition returns once again. With the competiton now open to 14 year olds and above she manages to impress again and makes it through. Others to impress include Ryan who has been serving in the British Army in Iraq.

In this round, the 15 acts (five for each judge) go to the "homes" of their respective judges, where they are interviewed and perform again. Each judge then chooses three acts to go through to the finals (making a total of nine finalists).

The judges get together a team to help them mentor their group of hopefuls.

The judges visit Scotland. The talent is very poor and the success rate of getting through to the next round is very low. The judges aren't very pleased. Sharon, annoyed at Simon, pours two glasses of water over his head.

The judges visit Newcastle. Two rivalry bands both get through to the next round. A girl tries out with her two best friends, only to be told by Simon that she has to ditch them if she wants to go any further. After a heart-to-heart with her friends, the girl tries out in front of the judges on her own. Louis gets re-acquainted with an old friend. Simon suggests that Louis take her out, then when she turns up for their lunch date with her dog, Louis runs away from Simon and out of the back door.

The judges visit Leeds and London for the first audions round. Amongst the thousands of contestants who tried out were: Retired miner Mario, sisterly duos Sweet Harmony and Gemini, rapper ginger Benjamin (who got on the wrong side of Sharon by insulting her kids!) & 81 year old Reney!