Another nine hopefuls take to the stage in the penultimate live semi-final, all with their eyes on the prize of £250,000 and a slot at this year's Royal Variety Performance. Six places in the final have already been filled, by Collabro, Darcy Oake, Addict Initiative, James Smith, Lucy Kay and Yanis Marshall, Arnaud and Medhi, and to win the next two, the acts have to entertain the voting public as well as the four judges. However, proving their auditions weren't just a one-off might be easier said than done for some. Ant and Dec present.