Popsugar Fashion Red Carpet Sexiest Dresses 2017 Billboard Music Awards The Unspoken Dress Code at the Billboard Music Awards Is Straight-Up Sexy May 21, 2017 by Hannah Weil McKinley View On One Page Photo 1 of 4 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Rita Ora The singer stepped out in a dramatic waist-cinching top and sheer black bottoms by Francesco Scognamiglio. Previous Next Start Slideshow Red CarpetBillboard Music AwardsAward Season