Tamera Foster originally auditioned in the room as one half of Silver Rock. But, having gone through to the arena round as a soloist, can she make an impression with Whitney Houston's I Have Nothing? Visit the official site: http://itv.com/xfactor SUBSCRIBE: http://bit.ly/TXFSub Facebook: http://bit.ly/TXFFB Twitter: http://bit.ly/TXFTwi