2015 Billboard Music Awards - Show10 pictures

Recording artist Nicki Minaj (C) and DJ/producer David Guetta perform during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.

Recording artist Nicki Minaj performs during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.

Recording artist John Legend (L) and singer/songwriter Meghan Trainor perform during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.

Bassist Wolfgang Van Halen, drummer Alex Van Halen and guitarist Eddie Van Halen of Van Halen perform during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.

Singer David Lee Roth (L) and guitarist Eddie Van Halen of Van Halen perform during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.

Singer David Lee Roth (L) and guitarist Eddie Van Halen of Van Halen perform during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.

'Entourage' movie cast members Kevin Dillon, Adrian Grenier, Kevin Connolly and Jerry Ferrara present the Top Artist award during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.

Recording artist Kanye West performs onstage during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.

Recording artist Kanye West performs onstage during the 2015 Billboard Music Awards at MGM Grand Garden Arena on May 17, 2015 in Las Vegas, Nevada.