Rihanna, Carrie Underwood and Miley Cyrus have joined a superstar cast of fifteen female pop singers to record 'Just Stand Up,' a charity song in support of cancer research. Beyonce, Mariah Carey, Leona Lewis, Fergie, Mary J. Blige and more will also all take part in the fundraising single in conjunction with Stand Up to Cancer, with the goal of encouraging the public to help stop cancer from being a leading cause of death.

'Just Stand Up' will be performed live on Friday, September 5 with a simultaneous broadcast on ABC, CBS and NBC. It will be available as an iTunes download on September 2.

Listen to 'Just Stand Up'!