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Posted: 5/19/2013 10:50:25 PM EST
Justin Bieber, center, performs at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by Chris Pizzello/Invision/AP)
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Posted: 5/19/2013 10:50:25 PM EST
Taylor Swift accepts the award for top Billboard 200 album for "Red" at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by Chris Pizzello/Invision/AP)
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Posted: 5/19/2013 9:18:33 PM EST
Chris Brown performs at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by Chris Pizzello/Invision/AP)
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Posted: 5/19/2013 9:18:33 PM EST
Tracy Morgan, left, and Psy participate in a "dance-off" at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by Chris Pizzello/Invision/AP)
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Posted: 5/19/2013 9:18:33 PM EST
Shania Twain presents the award for top rap artist to Nicki Minaj at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by Chris Pizzello/Invision/AP)
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Posted: 5/19/2013 9:18:33 PM EST
Nicki Minaj accepts the award for top rap artist at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by Chris Pizzello/Invision/AP)
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Posted: 5/19/2013 9:18:33 PM EST
Bruno Mars, third from left, performs at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by Chris Pizzello/Invision/AP)
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Posted: 5/19/2013 9:18:32 PM EST
Taylor Swift arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:29:53 PM EST
Jason Derulo arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:29:53 PM EST
Miguel arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:29:53 PM EST
Kelly Rowland arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:29:53 PM EST
Shania Twain arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:29:53 PM EST
Miley Cyrus arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:29:53 PM EST
Will.i.am arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:29:53 PM EST
Jennifer Lopez arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:29:53 PM EST
Casper Smart, left, and Jennifer Lopez arrive at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:29:53 PM EST
Taylor Swift arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:00:38 PM EST
Hayden Panettiere arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:00:38 PM EST
Sky Blu stands on one hand as he arrives at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
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Posted: 5/19/2013 8:00:38 PM EST
Megan Wollover, left, and host Tracy Morgan arrive at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 19, 2013 in Las Vegas. (Photo by John Shearer/Invision/AP)
