All the five remaining acts will perform twice on Saturday's show, with one Take That classic and another from pop legend John's back catalogue.
Stacey Solomon is tipped to perform 'Something About The Way You Look Tonight' and 2007 hit 'Rule The World'. On the 2008 series Rachel Hylton sang the same Take That track, but ended up exiting the competition.
Joe McElderry is rumoured to be singing 'Sorry Seems To Be The Hardest Word' and Take That's cover of Barry Manilow's 'Could It Be Magic'.
John's 'Your Song' and Take That's party anthem 'Relight My Fire' will apparently be Danyl Johnson's song choices, while Olly Murs is reportedly doing 'Saturday Nights Alright For Fighting' and ballad 'Love Ain't Here Anymore'.
Meanwhile, Lloyd Daniels is expected to play 'I'm Still Standing' and 'Million Love Songs'. Previous X Factor winners Leona Lewis and Shayne Ward both performed the same Take That song during their stints on the show.
The X Factor airs on Saturday at 8pm on ITV1.