Playing

Episode 1: Ray Winstone, Arlene Phillips, Catherine Tate, Pixie Lott

Episode 2: Alan Carr, Billie Piper, Alicia Keys

Episode 3: Kim Cattrall, Misfits, Jedward, Editors

Episode 4: Lorraine Kelly, Shahrukh Khan, John Barrowman, Marina and the Diamonds

Episode 5: Jeff Bridges, John Bishop, Westlife, Courtney Love

Episode 6: Colin Farrell, Natalia Vodianova, Jason Manford and Jay-Z

Episode 7: Johnny Depp, Tim Burton, Lord Lloyd Webber and soul singer Sade

Episode 8: Lady Gaga, Stephen Moyer and Michael Ball

Episode 9: Charlotte Church, James Corden, cast of Outnumbered, Amy Williams, Plan B

Episode 10: Emma Thompson, Matt Smith, Brian Cox, Goldfrapp

Episode 11: Heston Blumenthal, Tina Fey, Aaron Johnson, Groove Armada ft. Will Young

Episode 12: Idris Elba, Kiefer Sutherland, Gemma Arterton and Alphabeat

Episode 13: Gwyneth Paltrow, Demi Moore and Robert Downey Jnr. Plus Paul Weller.

Episode 14: Russell Crowe, Reginald D Hunter, David Gandy and Dizzee Rascal

Episode 15: Jake Gyllenhaal, Lord Alan Sugar, Adam Lambert, and The Drums

Episode 16: Nick Frost, Alexandra Burke, Warwick Davis and Ellie Goulding

Episode 17: Ross Noble, Mary Portas, Gary Lineker and Gorillaz

Episode 18: Gabourey Sidibe, Jeff Goldblum, Kevin Bridges and Pendulum

Episode 19: Andy Roddick, LL Cool J, Christina Aguilera and Eminem

Episode 20: Frankie Boyle, Katherine Heigl, Diddy

Episode 21: Al Green, Cast of Glee, Tom Hardy, Scissor Sisters play a song from their new album

Episode 22: Kylie Minogue, Sean Lock, Seasick Steve

Episode 23: Robin Williams, Elle Macpherson, Tim Minchin, Mark Ronson

Episode 24: Jimmy Carr, Penn and Teller, Ellen Page, Tom Jones

Episode 25: David Beckham, Jackie Chan, Mickey Rourke, Roxy Music