The song features 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. I can hear Beyonce and Rihanna and Carrie in the beginning. Everyone else got one line here and there. Looks like they just added some people for name sake. In all, better than I expected

All sales of the star-studded single will benefit cancer research. The charity tune was conceived by Antonio “L.A.” Reid, who produced it with longtime creative colleague Kenny “Babyface” Edmonds. All 15 singers will share the stage to perform the song live on Sept. 5 during the “Stand Up to Cancer” television special, set to air simultaneously on ABC, NBC and CBS.