Former Scary Spice Mel B has signed up to host US weight loss show Dance Your Ass Off.
The ex-Spice Girl will present the second series of the show, in which contestants battle to shed the pounds on the dance floor.
Each week, the competitors are scored according to their weekly weight loss and their elaborate dance routines.
Mel B, a former contestant on Dancing with the Stars in the US, said: "After the birth of my second daughter, I wanted to find a fun and effective way to drop the pounds and get back in shape.
"I realised I didn't have to look far to find the answer. Whether I was dancing around the house with headphones on or on stage with the Spice Girls ... I learned firsthand that dancing was the key to shedding off the pounds and keeping them off."
The 34-year-old, who is rumoured to have been offered a role as a judge on next year's X Factor, also said she wants twins with husband Stephen Belafonte.
The couple have snapped-up a six-bedroom, eight-bathroom mansion in Los Angeles.
Mel B is already mother to Phoenix, 10, from her brief marriage to dancer Jimmy Gulzar, and Angel, two, the daughter of Eddie Murphy.
She told Hello! magazine: "We definitely want to have kids at some point in 2010 or the beginning of 2011, because this year's going to be pretty busy.
"Stephen has twins in his family and I would love to have twins. I think there's something nice about having two babies, and they're there for each other their whole entire life."
The full feature appears in Hello!, on sale now.