Visit the official site: http://itv.com/xfactor<br /><br />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.<br /><br />SUBSCRIBE: http://bit.ly/TXFSub<br />Facebook: http://bit.ly/TXFFB<br />Twitter: http://bit.ly/TXFTwi<br />Download The X Factor mobile app: http://bit.ly/TXFapp<br />Watch full episodes on ITV Player (UK ONLY): http://www.itv.com/itvplayer
