Rihanna Just Stands Up

Rihanna smiles and waves to fans as she leaves her hotel in New York City on Wednesday afternoon.

The 20-year-old Barbadian beauty will perform her hit singles “Take A Bow” and “If I Never See Your Face Again” on stage at Radio City Music Hall for the 5th Anniversary of Fashion Rocks.

Conde Nast Media Group also announced Rihanna will join Carrie Underwood, Ashanti, Ciara, Fergie, Keyshia Cole, Leona Lewis, Mariah Carey, Mary J. Blige, Miley Cyrus, Natasha Bedingfield, and Sheryl Crow in a live performance of “Just Stand Up,” the unprecedented charity single in support of Stand Up To Cancer (SU2C).

The Stand Up To Cancer TV special will be airing simultaneously on ABC, CBS, and NBC on Friday, September 5th. Fashion Rocks will air the following Tuesday night, September 9 in a two-hour special @ 9PM ET/PT on CBS.