LAS VEGAS, NV - MAY 19: (L-R) Recording Artists Pitbull, Morten Harket of A-ha and Christina Aguilera perform onstage during the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, ... more 
LAS VEGAS, NV - MAY 19: (L-R) Recording Artists Pitbull, Morten Harket of A-ha and Christina Aguilera perform onstage during the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images) less 
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Getty Images | Photo By Ethan Miller / Getty Images
Mon, May 20, 2013 12:24 AM EDT