Mo Farah, singer Ellie Goulding and Strictly Come Dancing judge Motsi Mabuse are among the famous faces heading into the Bake Off tent to raise some money for charity.
The Stand Up To Cancer Celebrity special will put 19 celebrities through their paces as they aim to impress judges Paul Hollywood and Prue Leith with tricky technical, signature and showstopper challenges.
Also stepping into the tent for the latest instalment of the hit Channel 4 show are TV presenters Laura Whitmore and Emma Willis, and Radio DJ Annie Mac.
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Also trying for the chance to be crowned Star Baker each week is singer Example, actor and author Ben Miller, The Inbetweeners star Blake Harrison, and TV and radio presenter Clara Amfo.
Completing the lineup is Former Coronation Street actress Katherine Kelly, comedian Ed Gamble, writer and comedian Mawaan Rizwan, TV star Ruby Wax, TV presenter Sophie Morgan, Friday Night Dinner’s Tracy-Ann Oberman, musician Yung Filly and choirmaster Gareth Malone.
For one episode, Matt Lucas will be testing his baking skills as he steps in to fill in for a missing baker.
He said: “I was forced to bake by my bosses at the last minute when one of the bakers became unavailable.
"I can’t tell you how happy I was that my humiliation was caught on camera."
For the rest of the series, he will be hosting alongside Noel Fielding.
Stand Up To Cancer was launched in 2012 as a national fundraising campaign from Cancer Research UK and Channel 4.
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