Jennifer Lopez and Pitbull perform at the Billboard Music Awards at the MGM Grand Garden Arena in Las Vegas.
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Kendall Jenner, left, and Kylie Jenner arrive at the Billboard Music Awards at the MGM Grand Garden Arena in Las Vegas.
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Ricky Martin performs on stage at the Billboard Music Awards at the MGM Grand Garden Arena.
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Kelly Rowland arrives at the Billboard Music Awards at the MGM Grand Garden Arena.
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Shania Twain, left, presents the award for top rock album to Dan Reynolds, of the musical group Imagine Dragons, at the Billboard Music Awards at the MGM Grand Garden Arena.
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Jennifer Lopez arrives at the Billboard Music Awards at the MGM Grand Garden Arena.
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Miranda Lambert, left, and Carrie Underwood perform on stage at the Billboard Music Awards at the MGM Grand Garden Arena.
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Ariana Grande performs at the Billboard Music Awards at the MGM Grand Garden Arena.
