Gok Wan, Adam Hills, David Weir, Eleanor Simmonds, Alex Brooker, Jody Cundy and Pink

Matt Smith, Kelly Osbourne, Jack Whitehall, Greg McHugh, Joe Thomas, Zawe Ashton, Charlotte Ritchie, Kimberley Nixon, Jonnie Peacock and Example

Jessie J, One Direction, Kevin McCloud and Alicia Keys

Paddy McGuinness, Theo Paphitis, Deborah Meaden, Duncan Bannatyne, Peter Jones and Conor Maynard

Cheryl Cole, McFly, Dara O'Briain, Leona Lewis

Chris O'Dowd, Kelly Brook and JLS

Gary Barlow, Louis Walsh, Tulisa and Nicole Scherzinger

Jamie Oliver, Jimmy Doherty, Taylor Swift, The Wanted and The Killers

Julia Davis, John Bishop, Melanie Chisholm, Emma Bunton, Geri Halliwell and Rita Ora

Rhod Gilbert, Paul O'Grady, Noel Gallagher

Kevin Bridges, Dermot O'Leary, David Walliams, Lawson

Michael McIntyre, Keith Lemon, Will.i.am and Daley featuring Jessie J

Davina McCall, Jon Richardson, Harry Hill and Rebecca Ferguson

Gordon Ramsay, Sir Ian McKellen, Miranda Hart and Kylie Minogue

Christmas Special: David Walliams, JLS, McFly and Hilary Devey

The Chatty Man Mash Up