Ricky Hatton, Tim Vine, Jon Culshaw and Nina Conti have singed up for 'Let's Dance for Comic Relief'.
The legendary boxer and the three comedians will take to the dance floor for the BBC One talent show, which begins on February 16, and be judged each week by a panel of TV personalities including comic legends such as Jo Brand and Frank Skinner.
The show will last four weeks and feature three Saturday night heats concluding with a grand final on March 9.
Alex Jones and Steve Jones will return to host the programme and 'The One Show' presenter is delighted to be helping to raise money for Comic Relief.
She said: "I'm ridiculously excited to be back on 'Let's Dance'. We have some of our best comedians as panellists, and an unbelievable line-up of brave celebrities who are all prepared to don their dancing shoes to raise lots of money for this year's Red Nose Day.
"Earlier this year Steve and I went out to Malawi to visit a number of projects funded by Comic Relief, and we can't wait to get stuck in, knowing that the money raised this Red Nose Day will go towards helping families in Africa and in the UK that desperately need it."
Steve Jones added: "It's still the most fun I have on TV, so I am ecstatic 'Let's Dance' is back with a whole host of famous faces along with famous arms, legs, necks and fingers all attempting to dance for our viewing pleasure!"
Last year, British comedian Rowland Rivron won the competition and Kevin Cahill, CEO of Comic Relief, can't wait to see how this year's star-studded line-up get on.
He said: "We are delighted that 'Let's Dance for Comic Relief' is back for 2013. We've had some fantastic winners in the past - Robert Webb, Rufus Hound, James Thornton and Charlie Baker, and Rowland Rivron - and we've got another great line-up of celebrities competing in this year's show. We're confident that once again viewers will get behind the show and help raise a life-changing amount of money for people living incredibly tough lives both here in the UK and in Africa."
Red Nose Day 2013 will take place on Friday March 15.