X Factor duets: Which stars are the finalists going to sing with?

And we all know the most interesting thing about it (apart from the winner) is who the X Factor contestants duet with.

With stars such as Beyonce and Rihanna performing duets in the X Factor final in the past, the bar is set pretty darn high.

So who is rumoured for this year?

Well, considering former winners Little Mix are confirmed to perform on the show over the weekend, there is a lot of speculation they will perform with Simon Cowell's act, manband Rak-Su.

To be honest, that would be a lot of bodies on stage, but we think it could work.

Craig David is also another artists who it's claimed could team up with the Waford band.

Sharon Osbourne's act Grace Davies, 20 could sing with Take That legend Robbie Williams.

Robbie has performed on the show in the past with Olly Murs and Grace has also dubbed him her "dream duet partner".

She could also sing with 2012 X Factor winner James Arthur, who performed his new track Naked on the show last weekend.

When it comes to Kevin Davy White, Nicole Scherzinger is the favourite to sing with the soulful Frenchman.

Nicole, 39, is known to team up with her acts in the past, including last year's winner Matt Terry.

Ooh, all these rumours are getting us excited already.

One act is set to go on Saturday night's show, with two left for Sunday night's final.

The X Factor airs live this Saturday night on ITV at 7.05pm from The ExCel centre.