The music industry's hottest stars got glamorous for the 2013 Billboard Music Awards blue carpet on Sunday in Las Vegas. Taylor Swift wore a short and shimmery blue number, while Miley Cyrus went bold in a black and white jumpsuit. Selena Gomez showed skin in a sexy white dress, and Hayden Panettiere donned a gorgeous black gown. Click through to see who else stepped out for the star-studded show and what they wore! Plus, be sure to vote for your favorite looks in our fashion polls.