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LAS VEGAS, NV - MAY 17: (L-R) Actress/singer Zendaya, actress Hailee Steinfeld, singer/musician Taylor Swift, model Lily Aldridge and model Martha Hunt arrive at the 2015 Billboard Music Awards at the MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada. (Photo by Jeffrey Mayer/WireImage)

LAS VEGAS, NV - MAY 17: (L-R) Actress/singer Zendaya, actress Hailee Steinfeld, singer/musician Taylor Swift, model Lily Aldridge and model Martha Hunt arrive at the 2015 Billboard Music Awards at the MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada. (Photo by Jeffrey Mayer/WireImage)