Some of the biggest names across several genres of music gathered at the Microsoft Theater in Los Angeles Sunday night for the 2015 American Music Awards (AMAs). Artists like Nicki Minaj, Ariana Grande, One Direction, Justin Bieber and more were in attendance for an evening jam-packed with awards and, of course, performances

Most tuned in with the hope of watching their favorite artists snag major titles like Artist of the Year, Collaboration of The Year, Favorite Rap/Hip-Hop Album and more, while others were glued to their television sets for the fashion. Celebrities showed out on the AMAs red carpet, donning sleek suits and over-the-top gowns. As is always the case with star-studded events, not every outfit was a winner.

Here are the best and worst looks from the 2015 AMAs red carpet: