The Great Celebrity Bake Off for Stand Up To Cancer — Episode 4: Greg James, Fern Brady, Mel B, Dermot O'Leary

You are watching the episode Greg James, Fern Brady, Mel B, Dermot O'Leary Greg James, Fern Brady, Spice Girl Mel B, and Dermot O'Leary take on iced buns in the Signature, a family classic in the Technical and a hilarious Showstopper, where they create their celebrity doppelganger in biscuit form.