Taylor Swift, Eva Longoria, Priyanka Chopra and Mariah Carey were among the A-listers who descended on Las Vegas last night to attend the annual Billboard Music Awards (BMAs). In the past, the BMAs have brought out some fairly out-there ensembles. The red carpet is a more casual affair than many other awards ceremonies, so celebrities often seize the opportunity to be more playful with their attire. This year was no different. While Priyanka Chopra, Olivia Wilde, Kelly Clarkson, Cobie Smulders and Eva Longoria opted for fairly safe red carpet outfits, Taylor Swift, Cardi B and Halsey were among the celebs who selected more out-there looks to wear. Scroll to see the looks that stole the show.