Last night a bunch of teenagers and former American Idol winners turned up for the annual Billboard Awards, held this year at the MGM Grand in Las Vegas. While the rest of the world is analyzing Kendall Jenner's teleprompter disaster, we're turning our attention to disasters of the red carpet fashion variety. See who we said "made our eyeballs hurt" and who looked like they were rocking an "avant sports bra," below.

Billboard Awards

Billboard Awards

Billboard Awards

Billboard Awards

Billboard Awards

Billboard Awards

Billboard Awards

Billboard Awards

Billboard Awards

Billboard Awards

Billboard Awards

Billboard Awards