Christmas Special: Samuel L Jackson, John Bishop, Catherine Tate's Nan, Steph and Dom, Keith Lemon, Lorraine Kelly, Little Mix, One Direction

Joining the host on the sofa for some festive cheer are Hollywood megastar Samuel L Jackson, funnyman John Bishop, Catherine Tate's Nan, The Voice presenters Emma Willis and Marvin Humes, Gogglebox's Steph and Dom, the inimitable Keith Lemon and breakfast telly queen Lorraine Kelly. Plus, musical performances by Little Mix and One Direction.