Bake Off returns with four special programmes for Comic Relief. Sue Perkins presents as Joanna Lumley, Jennifer Saunders, Lulu and Dame Edna face Mary and Paul's challenges.

The Great British Bake Off returns with four special Comic Relief programmes. Jo Brand welcomes David Mitchell, Michael Sheen, Jameela Jamil and Sarah Brown to the tent.

The Great British Bake Off returns with four special Comic Relief programmes. Mel Giedroyc welcomes Gok Wan, Jonathan Ross, Abbey Clancy and Zoella to the Bake Off tent.

The Great British Bake Off returns with four special Comic Relief programmes. Ed Byrne welcomes Victoria Wood, Alexa Chung, Chris Moyles and Kayvan Novak to the tent.

Comic Relief takes over the Great British Bake Off tent. Jo Brand, Stephen K Amos and comedy duo Watson and Oliver face a dastardly technical challenge and other tasks.

Comic Relief takes over the Great British Bake Off tent. Warwick Davis, Duncan Bannatyne, Simon Reeve and Andy Akinwolere attempt pastry for the first time.

Comic Relief takes over the Great British Bake Off tent. Ellie Simmonds, Kirsty Wark, Julia Bradbury and Bob Mortimer compete in the baking battle with eclairs, scones and a cake.

Claudia Winkleman, Ed Byrne, Martha Kearney and Helen Glover attempt chocolate biscuits, lemon meringue pie and birthday cake for Comic Relief's 25th anniversary.

The four Comic Relief Bake Off star bakers are interviewed by Jo Brand, and one of them is declared the overall winner of The Great Comic Relief Bake Off 2015.