The X Factor contestants are pulling out all the stops on this week's semi finals by tackling some of the biggest names in music including Beyoncé, Amy Winehouse and James Brown.

The remaining four contestants face a tough challenge this week as they battle for a place in the final and ultimately to secure the coveted record deal on offer for the eventual winner.

Fittingly the theme for this week's show is is Get Me To The Final – well, we're not sure if that is exactly a theme, but it gives the impression that the contestants are prepared to go to the next level to secure the votes. 

Here's a rundown of the two songs each contestant will be singing: 

Che Chesterman: Would I Lie to You? - Charles & Eddie / Love is a Losing Game - Amy Winehouse

Louisa Johnson: It's a Man's Man's Man's World - James Brown / The Power of Love - Frankie Goes to Hollywood

Lauren Murray: Runnin' (Lose It All) - Naughty Boy feat. Beyoncé / Best of My Love - The Emotions

Reggie 'N' Bollie: Locked Away - R. City feat. Adam Levine / TBA

The X Factor main show is on this Saturday at 8pm on TV3, with the results following on Sunday also at 8pm.

The results show will also feature live performances from Australian singer-songwriter Sia, who'll be performing her new single Alive, and American singer Jason Derulo, who'll be treating the audience to his latest hit, Want To Want Me.