Mariah Carey, Beyonce, Mary J. Blige, Rihanna, Fergie, Sheryl Crow, Miley Cyrus, Melissa Etheridge, Ashanti, Natasha Bedingfield, Keyshia Cole, Ciara, Leona Lewis, LeAnn Rimes and Carrie Underwood are collaborating on the single Just Stand Up, for the Stand Up to Cancer campaign.
The song, which reunites producers Babyface and L.A. Reid, can be purchased at iTunes starting September 2 and will be performed during the September 5 Stand Up to Cancer special (whichwill air on ABC, CBS and NBC at 8 p.m.).