The Great Celebrity Bake Off for Stand Up To Cancer has confirmed Mel B as its first contestant and revealed additional contestants including Danny Dyer, Rhod Gilbert, Dermot O'Leary, Gabby Logan, Paloma Faith, and Friends star David Schwimmer. The competition, part of a joint national campaign by Cancer Research UK and Channel 4, will feature a total of 20 celebrities competing over two days this spring for the title of Star Baker. The show will return to screens in April with judges Paul Hollywood and Dame Prue Leith overseeing the proceedings.