Kate Beckinsale arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Sam Hunt arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Dencia arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Ludacris, left, and Eudoxie Mbouguiengue arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Lea Michele arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Rachel Lindsay arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Rita Ora arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Miss America 2017, Savvy Shields arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Tish Cyrus, from left, Noah Cyrus, Billy Ray Cyrus and Brandi Glenn Cyrus arrive at the Billboard Music Awards. (Richard Shotwell/Invision/AP)
Vanessa Hudgens arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
John Legend arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Rachel Platten arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Ashley Tisdale arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
DJ Khaled arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Tiffany Alvord arrives at the Billboard Music Awards. (Courtesy of the Billboard Music Awards)
Laura Marano arrives at the Billboard Music Awards. (Courtesy of the Billboard Music Awards)
Sibley Scoles arrives at the Billboard Music Awards. (Courtesy of the Billboard Music Awards)
Recording artist Z LaLa attends the 2017 Billboard Music Awards at the T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (David Livingston/Getty Images)
Prince Michael Jackson arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
BTS, a South Korean band, arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Singer Camila Cabello attends the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (John Shearer/Getty Images)
Chris Daughtry arrives at the Billboard Music Awards at the T-Mobile Arena on Sunday, May 21, 2017, in Las Vegas. (Richard Shotwell/Invision/AP)
Recording artist Noah Cyrus attends the 2017 Billboard Music Awards at T-Mobile Arena on May 21, 2017 in Las Vegas, Nevada. (John Shearer/Getty Images)