Billboard Music Awards 2018: All the worst looks on the red carpet

Vegas is always a hot spot for unorthodox fashion choices -- but some stars took things a bit too far on Sunday at the 2018 Billboard Music Awards.

This year's crop of worst dressed landed on our list for a whole wide swath of reasons. Take Christina Aguilera, whose pinstriped ankle-length frock boasted an oversized belt and puzzling black train. Was she going for "menswear" or "gothic bride"?

If Christina's ensemble had way too much fabric involved, singer (and former Disney Channel star) Alyson Stoner had the opposite problem, strutting the red carpet in a plum-colored blazer with no shirt or bra underneath. Hopefully there's some fashion tape out of eyesight or else the slightest breeze is going to cause some problems this evening.

Other missed-the-mark looks came from Chrissy Metz, whose one-shoulder black dress was less problematic than the slicked-back hair, and Normani, who proudly showed off her undergarments. For next time, Normani, subtlety is always appreciated!

Although there were a slew of bad hits, there were also plenty of home runs. Tyra Banks, Kelly Clarkson and Maren Morris were all style standouts on the red carpet.

Take a look at all the arrivals in the gallery below: