The show will return to BBC Two this evening with Michael Vaughan, Bonnie Wright, Samantha Bond and Johnny Vaughan all doing their best to impress Mary Berry and Paul Hollywood.
While Michael Vaughan seems more interested in giving Mary Berry a big kiss on the cheek, the celebrity bakers will be tasked with whipping up some tasty treats as part of the effort to raise money for charity.
Among the foods the first four celebrities will be attempting to make are sandwiched biscuits and tarte tatin.
However, the showstopper bake - a 3D novelty cake representing a sporting event - is expected to separate out the pack, with Bond appearing to struggle with her baking in the picture above.
Sue Perkins is back for tonight's instalment of the Great Sport Relief Bake Off, though three guest stars will join Hollywood and Berry for the remaining episodes, which air tomorrow, Wednesday and Thursday.
As well as the baking competition, the show will feature Olympian Nicola Adams travelling to South Africa to explore the difference that Sport Relief has made.
Hollywood has previously said that there were "a few disasters, some triumphs and even some tears" during the show, while Berry has revealed that all the celebrities were "so excited" to take part.
The Great Sport Relief Bake Off begins tonight (January 13) at 8.30pm on BBC Two.
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