Simon wasn't keen on their audition song choice, so for the semi-finals they've gone for One Direction's Story Of My Life. These boys have certainly got big voices, but will the public get behind them?
Wow! What an sensational week it's been. After five semi-finals we can finally reveal the line-up - minus the Wild Cards - for the Britain's Got Talent final. It's shaping up to be an extraordinary climax to a sensational series!