Photos | Katy Perry rocks Obama's campaign rally
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Credit: Getty Images
LAS VEGAS, NV - OCTOBER 24: Singer Katy Perry performs at a campaign rally for U.S. President Barack Obama at Doolittle Park on October 24, 2012 in Las Vegas, Nevada. Obama is on a 48-hour campaign tour of battleground states, including Colorado, Florida and Iowa. (Photo by John Gurzinski/Getty Images)
