Graham is joined by Batman star Michael Keaton, Oscar-tipped for new film Birdman; top chef Jamie Oliver; comedy favourite Victoria Wood; Gandalf himself, Sir Ian McKellen; and pop sensations One Direction, chatting and performing their new single Night Changes.

Together on Graham's sofa are One Direction star Harry Styles, chatting and giving an exclusive UK television performance of his debut solo single Sign of the Times; Mrs Brown's alter-ego, Irish funnyman Brendan O'Carroll; Vicky McClure, star of police drama Line of Duty; and comedian Rob Brydon, talking about his new series with Steve Coogan, The Trip to Spain.

Graham is joined by two stars of the film Jumanji: The Next Level, Dwayne Johnson and Kevin Hart, Doctor Who star Jodie Whittaker, Michael Palin and singer Harry Styles.