'The X Factor' judge Simon Cowell has revealed that there will be a shock twist when it comes to voting on the show this week.
Speaking on GMTV, Cowell revealed that viewers' votes will be more important than ever this week but he declined to reveal what the twist was going to be.
According to the official website for the show, there are several possible options including an eliminated act coming back, two acts leaving the show, no voting from the judges or a guest judge being given the casting vote.
The songs that the remaining acts will sing in Saturday night's live show have also been announced.
The MacDonald Brothers will perform 'Can't Take My Eyes Off You', while Eton Road will sing 'Mack The Knife' and Kerry will sing 'They Can't Take That Away From Me'.
Robert is set to perform 'Mr Bojangles', Dionne will sing 'For Once In My Life' and Ashley will perform 'Moon Dance'.
'Summertime' has been chosen as Leona's song and Ray will perform 'Ain't That A Kick In The Head'.