Full line-up: YouTube star Zoella, Dame Edna, Jonathan Ross and more set for Great British Bake Off special

YouTube star Zoella will take part in a Comic Relief edition of The Great British Bake Off.

16:40 03 February 2015

YouTube star Zoella, whose real name is Zoe Sugg, will join other screen entertainers such as Michael Sheen, Dame Edna Everage and Joanna Lumley in a Comic Relief Edition of The Great British Bake Off, it has been revealed.

The series, which will begin on 11 February, will see 16 celebrities compete over four weeks to be named star baker by show stalwarts Mary Berry and Paul Hollywood.

Other star competitors include Jonathan Ross, Lulu, and former Prime Minister Gordon Brown's wife Sarah. Former Radio 1 DJ Chris Moyles, fashionista Alexa Chung, comedian David Mitchell and TV presenter Gok Wan are also part of the line-up.

Mary Berry said it had been "great fun" filming the series.

"Although there were some baking catastrophes, some surprising hidden skills were revealed," she added.

"One thing for certain is that anyone can have a go at baking and it's a great way to raise money for Comic Relief - and you are guaranteed to have a lot of fun!"

Meanwhile, regular presenter Sue Perkins, has revealed that she turned down the show twice.

"I have no ability to work out what is a good thing to do or not," she told Jonathan Ross on his ITV chat show. "I said no because [it] sounded ludicrous".

She added: "Sometimes television changes people," she said.

"It's amazing how quickly they turn," added her co-host, Mel Giedroyc.

"Week one, they're all lovely. Week three, 'oh darling, this bowl isn't big enough.'"