X Factor: Spoiler alert!

New reports on who the finalists will duet with...

11:47 08 December 2011

It's usually the X Factor contestants taking to the stage on a Saturday night to face the public, but this weekend the judges will join them, according to reports.

Gary Barlow, Kelly Rowland and Tulisa Contostavlos will all perform duets with their contestants, as this weekend's final hits Wembley.

Every year, the final show sees the finalists collaborate with stars already successful in the industry and, with a star studded panel, this year is no different.

With speculation over who the stars may be, it is now being reported that the contestants will sing alongside their mentors.

The acts have been busy rehearsing with their mentors this week for the final showdown.

OK! online is reporting that Amelia Lily and mentor Kelly will sing Tina TurnerÂ’s classic hit River Deep, Mountain High, while girl band Little Mix and their mentor Tulisa are rumoured to be performing an Alicia Keys medley.

Marcus Collins and Gary look set to duet to a Take That song, while Louis Walsh looks on as he is the only judge with no acts left.

The live final will air on ITV1 at 8pm this Saturday, with the results show following on Sunday.