The annual search for a star continues as more auditionees try to win over Simon Cowell, David Walliams, Amanda Holden and Alesha Dixon with their talents. The acts all have their eyes on the prize of £250,000 and a slot at this year's Royal Variety Performance, but first they must secure a place in the live semi-finals. And with the return of the golden buzzers, the judges, as well as hosts Ant and Dec, each have the power to send one act straight through, regardless of anyone else's opinion