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In September 2008, Rihanna joined other female Pop, Rock, R&B & Country singers such as Carrie Underwood, Ciara, Beyoncé, Leona Lewis, Mary J. Blige, rihana sexy Mariah Carey, and Fergie for the anti-cancer campaign Stand Up to Cancer and its theme song, "Just Stand Up!". The single is now available via iTunes.

In total, Rihanna has had eleven number-ones on the Billboard charts and has had major success on the Hot Dance Club Play chart with eight number-ones. When Rihanna received an endorsement seins rihanna deal from Clinique, she recorded a song written by Ne-Yo entitled "Just Be Happy" as part of the deal to promote their Happy fragrance. Rihanna also recorded a song called "Winning Women" with Pussycat Doll Nicole Scherzinger for P&G’s female deodorant Secret.

On November 23, 2008 Rihanna was ombrela rihana nominated for two American Music Award (Favorite Pop/Rock Female Artist and Favorite Soul/R&B Female Artist). Rihanna won in in both categories making it her third AMA. Rihanna alaso performed "Rehab" on stage at the AMA.^[25]