Girls Aloud Bill Bailey Andrea Bocelli The Bodyguard - cast of the West-End Musical Britain's Got Talent Winner 2012 - Ashleigh & Pudsey Britain's Got Talent Celebration - including: Diversity, Spelbound, Stavros Flatley & Paul Potts Cuba's Ballet Revolucion Neil Diamond Placido Domingo Rhod Gilbert Katherine Jenkins Alicia Keys Matilda - cast of the West-End Musical Kylie Minogue One Direction Rod Stewart David Walliams (host) Robbie Williams