After weeks of tough auditions and five fiercely competitive semi-finals, the national talent search comes to a close as the 11 remaining acts perform one last time. They are Collabro, Darcy Oake, the Addict Initiative, James Smith, Lucy Kay, Yanis Marshall, Arnaud and Mehdi, Bars & Melody, Lettice Rowbotham, Jack Pack, Paddy & Nico and wildcard entry Jon Clegg. The hopefuls all have one simple aim - to win a coveted slot at this year's Royal Variety Performance and get their hands on the £250,000 cash prize. All they have to do is impress the voting public, as the opinions of judges Simon Cowell, David Walliams, Amanda Holden and Alesha Dixon count for nothing - who wins is entirely down to the viewers at home. Plus, Little Mix perform their new single Salute with a special routine by Diversity, and there's also music by another big-name act. Presented by Ant and Dec.