LAS VEGAS, NV - SEPTEMBER 21: Singer Rihanna performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by ... more 
LAS VEGAS, NV - SEPTEMBER 21: Singer Rihanna performs onstage during the 2012 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Getty Images for Clear Channel) less 
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Getty Images | Photo By Christopher Polk / Getty Images for Clear Channel
Sat, Sep 22, 2012 4:55 AM EDT