Tonight is the first of the X Factor live shows and the tracks being sung by the finalists have now be revealed.
This week's theme is Number One Pop Songs and in addition to the chosen twelve, four wildcards will return to the competition.
Andrea Faustini will take on Michael Jackson's Earth Song, while Jake Quickenden will hope to impress with his version of Robbie's She's The One. Mel B's other male finalist Paul Akister will cover former contestant Ella Henderson's Ghost.
In the Girls category, Chloe-Jasmine Whichello will tackle Britney's Toxic, Lauren Platt will sing Pharrell's Happy and Stephanie Nala will perform Everything I Own.
Louis' group Blonde Electra will sing Kids In America, the as yet unnamed eight-piece boyband will cover Katy Perry's Roar and Only The Young will do a mash-up of Jailhouse Rock and Twist And Shout.
In the Over 25s, Ben Haenow will perform Bridge Over Troubled Water, Fleur East will sing All About The Bass and Jay James has chosen Changing.
