4th Power show us how it's done! | 6 Chair Challenge

Taking on Christina Aguilera’s Show Me How You Burlesque, 4th Power are hoping to claim one of Cheryl’s chairs for a place at Judges’ Houses.

After getting all four Judges on their feet, Rita brands their efforts “absolute perfection” while Simon states they are "amazing".

Cheryl concludes: “I don’t think you’re amazing, I think you are phenomenal.” Take a seat, ladies…