This year's 'The Great Celebrity Bake Off' includes some YUGE guests.
Little Mix's Jade Thirlwall is also in the line-up. Other musicians appearing on the Bake Off special include former X Factor winner Alexandra Burke, Dizzee Rascal, and Nadine Coyle.
There are a few comedians competing too between John Bishop, Tom Allen, Katherine Ryan and Rob Beckett.
TV presenters Stacey Dooley and Anneka Rice are also among the celebrity bakers.
Rounding out the contestants are double Olympic champion Dame Kelly Holmes, author and TV star David Baddiel, YouTuber and musician KSI, Paralympian Ade Adepitan, author and psychotherapist Philippa Perry, radio DJ Nick Grimshaw, actor Reece Shearsmith, and singer Anne-Marie.
Prue Leith and Paul Hollywood will be judging the bakes while Matt Lucas hosts.
The TV event is in aid of Stand Up to Cancer.
Each episode of 'The Great Celebrity Bake Off' will see four celebrities battle it out over three rounds (the Signature, the Technical and the Showstopper) in a bid to be crowned Star Baker.
The five episodes of the series will air sometime in Spring on Channel 4.