Some of the biggest names in the music industry attended Sunday’s iHeartRadio Music Awards at the Forum in Inglewood, California. Stars such as Taylor Swift, Fetty Wap, Justin Bieber and Calvin Harris took home awards, while other musicians like Demi Lovato and Zayn Malik got the audience up out their seats with killer performances.

Before the stars crowded into the Forum for the annual ceremony, they flaunted their outfits and personal style on the red carpet. This year, daring jumpsuits, sparkly gowns and crop tops were a staple for the ladies, while the men opted for fitted suits and oversized outerwear. While most celebrities looked amazing on the red carpet, some stars’ looks failed to impress.

Check out the best and worst iHeartRadio Music Awards red carpet looks below.