Together on Graham's sofa are: Hollywood star of Alien and Avatar Sigourney Weaver, taking to the West End stage in Shakespeare's The Tempest, English actor Nicholas Hoult (The Great, The Menu), starring in the remake of the classic gothic horror Nosferatu, celebrity chef Jamie Oliver, whose new cookbook is Simply Jamie, Lolly Adefope, playing set assistant Dag in the superhero-spoof series The Franchise and supergroup Coldplay, who chat and perform their current single, All My Life.