Nicole Scherzinger jumps on stage for 'Don't Cha' duet with Robbie Monaghan | The X Factor Auditions

Yes Lad 'Can't Stop the Feeling' with this Justin Timberlake banger! | The X Factor Auditions

She never had a singing lesson – but reminded them of WHITNEY! | The X Factor Auditions

Shayne Ward's 2005 audition... in 4K! | The X Factor Auditions

Armstrong Martins is 'Breaking Free' with High School Musical classic! | The X Factor Auditions

Alexandra Burke's 2008 audition... in 4K! | The X Factor UK

DISCO INFERNO! Stay-at-home husband Stephen Hunter is a DIVA | The X Factor Auditions

Lauren Platt: Every Incredible Live Show Performance! | The X Factor UK

17-year-old Nikitta Angus sings from the HEART | The X Factor Auditions

Scott James overcomes nerves to deliver heartfelt performance | The X Factor Auditions

Where It All Began: Best of Week One Live Shows! | The X Factor UK

17-year-old Jade Fubara WOWS with iconic DREAMGIRLS ballad | The X Factor Auditions

Nicolo Festa channels fierce DIVA energy with DONNY HATHAWAY cover | The X Factor Auditions

Lauren Murray brings the PARTY with JOCELYN BROWN CLASSIC! | The X Factor Auditions

Leeds joiner James Wilson delivers SOULFUL rendition of 'Jolene' | The X Factor Auditions

KELLY ROWLAND joins AMELIA LILY for ICONIC TINA TURNER duet! | The X Factor UK

Series 9 Finalists deliver a FESTIVE FAVOURITES MASHUP! | The X Factor UK

LITTLE MIX turn 'Silent Night' into pure Christmas magic! | The X Factor UK

63-year-old TWINS have that OLD SCHOOL swing! | The X Factor Auditions

Cosy up with WINTER WARMERS feat. JLS, Ella Henderson & More! | The X Factor UK

Lauren Platt reinvents a Whitney classic for a new generation! | The X Factor Auditions

Young dad hopes to change family's life with Stevie Wonder ballad | The X Factor Auditions

Best of The Xtra Factor Series 1 | The X Factor UK

BRITNEY SPEARS's 'Toxic' like you've NEVER heard it! | The X Factor Auditions

Lola Saunders brings tears with emotional Adele ballad | The X Factor Auditions

Boyband Bangers from 1D, 5SOS, BACKSTREET BOYS & more! | The X Factor UK

Amelia Lily lifts off the roof with Janis Joplin classic! | The X Factor Auditions

This act has Simon Cowell SINGING ALONG to JUNGLE BOOK! | The X Factor Auditions

From WICKED to DREAMGIRLS: It's Musical MAGIC! | The X Factor UK

Alisah Bonaobra is 'Defying Gravity' with WICKED cover! | The X Factor Auditions

Stacey Solomon performs 'Over the Rainbow' for Kylie & Dannii | The X Factor UK

Every electrifying JAMES ARTHUR Live Show performance! | The X Factor UK

Maths teacher John Adams melts hearts with DAMIEN RICE cover! | The X Factor Auditions

Andrea moves Judges with HEARTFELT opera tribute to late husband | The X Factor Auditions

RAK-SU, ELLA HENDERSON & more deliver UNFORGETTABLE ORIGINAL SONGS! | The X Factor UK

Primary school teacher Beverly wows with ARETHA FRANKLIN! | The X Factor Auditions

BBMak star Stephen McNally hopes for SECOND CHANCE at fame! | The X Factor Auditions

ONE DIRECTION are giving Twilight with this BONNIE TYLER ballad! | The X Factor UK

SPOOKY HITS with LITTLE MIX, CHER LLOYD, FLEUR EAST & more! | The X Factor UK

James Arthur turns EURYTHMICS classic into SPOOKY masterpiece! | The X Factor UK

Lascel Woods gives SOUL to Kings of Leon's 'Use Somebody' | The X Factor Auditions

Olly Murs fights for survival with ERIC CLAPTON CLASSIC! | The X Factor UK

James Arthur, Leona Lewis and more bring funky MOTOWN MAGIC! | The X Factor UK

51-year-old Terry Winstanley brings SOUL to MICHAEL BOLTON classic | The X Factor UK

Rai-Elle Williams does the NAE NAE to AWOLNATION's ‘Sail’ | The X Factor Auditions

Best of BOOTCAMP BALLADS! | The X Factor UK

Same Difference are 'Breaking Free' with HIGH SCHOOL MUSICAL | The X Factor UK

Niki Evans takes on TITANIC Celine Dion ballad! | The X Factor UK

This group of lads have INCREDIBLE harmonies! | The X Factor Auditions

Nervous singer impresses Judges with STING cover | The X Factor Auditions

Ex-BROOKSIDE star Danny McCall wants second chance at fame | The X Factor Auditions

This young father is doing it for his family! | The X Factor Auditions

Nicole Scherzinger & Sam Bailey deliver DREAMY duet! | The X Factor UK

Stacey Solomon takes on Coldplay's 'The Scientist' | The X Factor UK

From JUSTIN BIEBER to THE SUPREMES: Best of REMIXES & MASH-UPS | The X Factor UK

Rough Copy CHARM Tulisa & Rita Ora with Kings of Leon cover | The X Factor Auditions

This HILARIOUS acts gets the GIGGLES! | The X Factor Auditions

GET IT ON! Classic British Rock Covers | The X Factor UK

Ella Henderson WOWS Tulisa & Tinie Tempah with Jason Mraz cover | The X Factor Auditions

Eurovision star Slavko Kalezić UNLEASHES his inner Beyoncé | The X Factor Auditions