John Humphrys puts four famous faces in the spotlight in. Laying their reputations on the line are the BBC's media editor Amol Rajan, Saturday Live presenter Reverend Richard Coles, RuPaul's Drag Race runner-up Courtney Act and Mark Lane from Gardener's World. They answer questions on Shane Warne, the operas of Wagner, The Spice Girls and Piet Mondrian.