[Smithy]

The X Factor will have a 'Guilty pleasures theme for next week's live show.

The Xtra Factor hosts Caroline Flack and Olly Murs revealed the theme on tonight's edition of the ITV2 spinoff show.

The theme means that the remaining six acts - Rylan Clark, Jahmene Douglas, James Arthur, Ella Henderson, Christopher Maloney and Union J - will have the opportunity to sing songs by their own guilty pleasures.

'Guilty Pleasures' is a theme that has been well used by the ITV1 show, and was most recently featured on last year's series. Winners Little Mix performed a mash-up of Justin Bieber's 'Baby' and Diana Ross and The Supremes hit 'Where Did Our Love Go'.

It was also revealed that Olly Murs and Alicia Keys will be on next weekend's live show. Murs will perform his new single 'Troublemaker', while Keys is expected to sing her new track 'Girl On Fire'.

District3 became the latest act to be eliminated from the show after falling into the bottom two alongside Union J this evening.

Why even bother with themes? They may aswell just have sing whatever the **** you want every week