Emma Bunton, Louis Walsh, Cillian Murphy, Professor Green, Florence + the Machine
Episode: 1x01 | Airdate: Mar 29, 2010
Season 1
Aaron Johnson, Joanna Lumley, Patsy Palmer, Sharleen Spiteri
Episode: 1x02 | Airdate: Apr 5, 2010
Ewan McGregor, James Corden, Katy Brand
Episode: 1x03 | Airdate: Apr 12, 2010
Steve Carell, Jason Manford, Tamzin Outhwaite, Fun Lovin' Criminals
Episode: 1x04 | Airdate: Apr 19, 2010
Kevin Bishop, Kevin Hawley, Rupert Grint, Sophie Ellis Bextor
Episode: 1x05 | Airdate: Apr 26, 2010
Amir Khan, Janice Dickinson, Marina and the Diamonds, Ricky Whittle
Episode: 1x06 | Airdate: May 3, 2010
Sharon Osbourne, Alphabeat, Yvette Fielding, Gok Wan
Episode: 1x07 | Airdate: May 10, 2010
Mathew Horne, Meat Loaf, Rihanna
Episode: 1x08 | Airdate: May 17, 2010
Arlene Phillips, Jermaine Jackson, Joe Swash, Mary J. Blige
Episode: 1x09 | Airdate: May 24, 2010
Adam Lambert, Jason Donovan, Jessica Hynes, Louie Spence
Episode: 1x10 | Airdate: May 31, 2010