Here are all the song choices from tonight's X Factor 2018 judges' houses with the girls.
This evening sees the first round of judges' houses as we head to America and the city of Malibu.
Simon is joined by some 50 guests from the music business including Randy Jackson, Paula Abdul, Diane Warren and Ryan Seacrest. There's also former X Factor winner Leona Lewis and judges' houses regular Sinitta .
Each of the final six girls from the six chair challenge takes their turn in front of the group to perform their one chosen song.
The song choices include both original music and covers, from artists ranging from K-Pop group BTS to Whitney Houston.
X Factor 2018 song choices
19 from Essex
Macklemore & Ryan Lewis ft Mary Lambert – Same Love
20 from Birmingham
Jocelyn Brown – Somebody Else’s Guy
17 from Philippines
The Mama’s and the Papa’s – California Dreamin’
16 from County Durham
BTS – Fake Love
20 from Surrey
Whitney Houston – I Didn’t Know My Own Strength
25 from Croydon
After the performances, there's a nervous wait for the contestants as Simon and his various guests discuss the girls.
The next day, Simon sits down with the acts one by one to reveal which four of them are going through to the live shows.
The X Factor Judges Houses air from Sunday 7th October, 8pm on ITV
The judges' houses continue next weekend with Robbie Williams taking the Groups to Beverley Hills with guest judge David Walliams. Louis Tomlinson will take the Boys category to Ibiza with fellow One Direction star Liam Payne plus Nile Rodgers. Finally, Ayda Williams will fly the Overs with her to LA, joined by guests Leona Lewis and Adam Lambert.
The live shows will begin with the finalists at the end of the month, airing weekends through until December where the winner is crowned.