The Saturdays singer Frankie Bridge is the first star to join the line-up for the new series of Strictly Come Dancing.
The pop star, who said she is "a huge fan" of the hit ballroom show, is married to former England footballer Wayne Bridge.
She said: " I've always wanted to be a part of the show - it looks like so much fun and the costumes are just gorgeous.
"Like so many little girls, I used to take dance lessons when I was in primary school and I really love dancing but this is going to be so different from anything I have done with The Saturdays. I just can't wait to get started."
The 25-year-old had her first taste of fame as a 12-year-old with pop group S Club Juniors and joined The Saturdays in 2007.
The girl band have racked up more than a dozen top 10 hits.
The singer will be one of 15 celebrities competing for the glitter ball trophy when the show returns to BBC One this autumn.
Other names reported to be in the running to take part include Andy Murray's mother Judy.
The new series will be the first one without veteran host Sir Bruce Forsyth, with Tess Daly and C laudia Winkleman sharing the presenting job.
The singer, who has a 10-month-old son called Parker, said she would be "going backwards and forwards" to balance the demands of the show with her family and the group's commitments.
She told BBC Breakfast: "I'm going to be really busy because we are actually on tour while it all starts so I am going to be juggling the band and baby so he's going to have to be there, he will be around."