Performer PSY gestures outside the 2013 Billboard Music Awards at the MGM Grand Garden Arena in Las Vegas, Nev.
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Musician Justin Bieber performs onstage during the show.
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BMX rider Corey Bohan and TV personality Audrina Patridge arrive at the Awards.
WireImage
Singer Jennifer Lopez performs onstage during the show.
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Musician Ed Sheeran performs.
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Host Tracy Morgan speaks onstage.
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Actress/singer Selena Gomez speaks onstage.
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Singer Christina Aguilera performs.
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Taylor Swift poses for a photo with all her awards in the press room.
FilmMagic
Prince performs onstage.
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