Popsugar Celebrity Billboard Music Awards Demi Lovato at the 2018 Billboard Music Awards Demi Lovato Is Ready to Let the World Hear Her Roar at the Billboard Music Awards 21 May 2018 by Celia Fernandez View On One Page Photo 4 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 4 Previous Next Start Slideshow Billboard Music AwardsDemi Lovato