"The X Factor" UK 2015 semi-finals live performance is set to begin in a few hours. The remaining four finalists will belt out tonight with the hope of progressing to next week's finale at the Wembley SSE Arena.

Louisa Johnson, Lauren Murray, Reggie N Bollie and Che Chesterman will perform two songs each in the semi-finals and one of them will be sent home during the elimination episode on Sunday based on public votes.

Song choices of top 4 finalists:

Louisa Johnson from Rita Ora's GIRLS: She will sing "The Power Of Love" by Frankie Goes To Hollywood and "It's A Man's World" by James Brown. She blamed a sore throat for her shaky performance last week but no excuses this time.

Lauren Murray from Rita Ora's GIRLS: "Runnin' (Lose It All)" by Naughty Boy ft. Beyonce, Arrow Benjamin and "Best Of My Love" by The Emotions. She has taken up challenging songs again.

Reggie n Bollie from Cheryl Fernandez-Versini's GROUPS: "Locked Away" by R. City ft. Adam Levine and a mash-up of "I Gotta Feeling" by The Black Eyed Peas and "I Like to Move It" by Reel 2 Real featuring The Mad Stuntman. They will be expected to get the audience on their feet once again.

Che Chesterman from Nick Grimshaw's BOYS: He will take on "Would I Lie To You" by Charlie & Eddie and "Love Is A Losing Game" by Amy Winehouse. His performance of Adele's song "Hello" last week was a big disappointment but he was voted through to the semi-finals. He will be expected to impress the audience tonight.

"The X Factor" UK semi-finals (Live Shows week 6) will be telecast live at 8pm on Saturday, 5 November. The episode will be aired on ITV1 and ITV1 HD, and live streaming will be available on the channel's website.