Britain's Got Talent 2009 semi-finalist: Martin Macham

Despite being buzzed by Simon Cowell and Amanda Holden in his audition, Martin Macham, 35, wins over Piers Morgan and eventually Amanda with his guitar-playing and singing.

Simon Cowell says that if Martin wins Britain's Got Talent, he could single handedly shut down the whole show - his mother-in-law then proceeds to give Simon a piece of her mind.