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Taio Cruz and Chipmunk are headlining a concert to raise awareness of the London 2012 Paralympics.
They'll be joined by The Saturdays in a day-long festival, on Clapham Common in south London this September.
Chipmunk said: "It's going to be a great day out for people of all ages, and a chance to really get behind the London 2012 Paralympic Games."
Paralympic sports will be demonstrated on the day with some have-a-go-sessions.
All profits will go to the Paralympic Legacy Fund. This has been set up to support Paralympic athletes and to promote healthier and more active lifestyles for younger people regardless of ability.