Popsugar Fashion Celebrity Fashion Billboard Music Awards 2021: See Every Red Carpet Look See Every Bold Look From the 2021 Billboard Music Awards 24 May 2021 by Nikita Charuza View On One Page Photo 1 of 18 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Megan Fox and Machine Gun Kelly at the 2021 Billboard Music Awards Megan wore a cutout black dress with a sheer skirt. Previous Next Start Slideshow Celebrity FashionAward SeasonBillboard Music AwardsRed Carpet