Gok Wan, Adam Hills, David Weir, Eleanor Simmonds, Alex Brooker, Jody Cundy and Pink1Matt Smith, Kelly Osbourne, Jack Whitehall, Greg McHugh, Joe Thomas, Zawe Ashton, Charlotte Ritchie, Kimberley Nixon, Jonnie Peacock and Example2Paddy McGuinness, Theo Paphitis, Deborah Meaden, Duncan Bannatyne, Peter Jones and Conor Maynard4Jamie Oliver, Jimmy Doherty, Taylor Swift, The Wanted and The Killers8Julia Davis, John Bishop, Melanie Chisholm, Emma Bunton, Geri Halliwell and Rita Ora9Michael McIntyre, Keith Lemon, Will.i.am and Daley featuring Jessie J12