'The X Factor' final, Leona Lewis, judge duets - in pictures
The trio duetted with their mentors Gary Barlow, Kelly Rowland and Tulisa Contostavlos and performed solo for a spot in tonight's final showdown.
Former X Factor champion Leona Lewis also returned to show what the ITV1 reality show can do for a singer's career.
Relive the special guest performances, the solos, the duets and all the drama in our picture gallery of the evening's events below:
Copyright: Ken McKay/TalkbackThames/Rex Features