Popsugar Fashion Red Carpet Best Outfits at the Billboard Music Awards Move Over, Hot 100 — These Are the Best 25 Looks in Billboard Music Awards History April 30, 2019 by Marisa Tom View On One Page Photo 7 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Katy Perry at the 2012 Billboard Music Awards The singer chose a soft, shimmery lavender Blumarine gown that both simultaneously complemented and offset her dark purple waves. Previous Next Start Slideshow Red CarpetBillboard Music AwardsAward SeasonDresses