'X Factor' Semi-Final: Amelia, Marcus, Little Mix, Misha in pictures
The final four sang for your votes and the judges' approval with tracks from the Motown back catalogue and one song that they thought would get them into the final.
Gary Barlow, Louis Walsh, Tulisa Contostavlos and Kelly Rowland have all had their say, but it will be the public vote that truly decides who goes on to win the competition.
The X Factor semi-final results show, which will feature guest slots from Rowland and Justin Bieber, airs on Sunday (December 4) at 8pm on ITV1.
Relive the drama and sizzling performances from across the night with our picture gallery:
Copyright: Ken McKay/TalkbackThames/Rex Features