ITUNES FESTIVAL: John Legend

Church choir leader, pianist, vocalist and arranger Legend worked behind the scenes with the likes of Jay-Z, Kanye, Nas, Mary J Blige, Alicia Keys and even Michael Jackson, but he's now most famous as a neo-soul crooner in his own right. He's back with a new album, 'Love in the Future', which will get its first London airing at the iTunes Festival. Win tickets on the iTunes Store, via www.itunesfestival.com.