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.

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Calvin Harris
BEST: Calvin Harris showed up to the iHeartRadio Music Awards at the Forum in Inglewood, California, on April 3, 2016 in fitted black trousers and a grey button down shirt and jacket. Getty Images
Big Sean
WORST: Rapper Big Sean decided to pile on the layers at the iHeartRadio Music Awards on April 3, 2016, in Inglewood, California, but unfortunately this look didn’t work. Getty Images
Jhene Aiko
BEST: Singer Jhene Aiko looks cute and comfortable in a multicolored, patterned jumpsuit. Definitely a red carpet win at the iHeartRadio Music Awards in Inglewood, California, on April 3, 2016. Getty Images
Kat Graham
WORST: Kat Graham wore a black and white, off-the-shoulder jumpsuit to the iHeartRadio Music Awards in Inglewood, California, on April 3, 2016. The actress’ hair and makeup looked amazing, but her outfit was a miss. Getty Images
Chris Brown
BEST: Chris Brown rocked the red carpet at the 2016 iHeartRadio Music Awards on April 3 in Inglewood, California, with fitted white jeans and a white slightly oversized sweater with red side paneling. Getty Images
Julianne Hough
BEST: Julianne Hough looked chic in a short white dress and matching heels. Another red carpet win at the iHeartRadio Music Awards in Inglewood, California, on April 3, 2016. Getty Images
James Maslow
BEST: James Maslow looked super comfortable and stylish as he walked the red carpet at the iHeartRadio Music Awards in Inglewood, California, on April 3, 2016. Getty Images
Mercedes Javid
WORST: “Shahs of Sunset” star Mercedes Javid’s lime green dress definitely wasn’t a winner at the 2016 iHeartRadio Music Awards on April 3 in Inglewood, California. Getty Images
Taylor Swift
WORST: Taylor Swift’s boyfriend Calvin Harris made the best dressed list for his sleek look at the 2016 iHeartRadio Music Awards in Inglewood, California, on April 3, but unfortunately the pop star’s sparkly jumpsuit landed her on the worst dressed list. Getty Images
Serayah
BEST: Serayah completely nailed her red carpet look. The “Empire” actress wore a Nicolas Jebran mini at the iHeartRadio Music Awards in Inglewood, California, on April 3, 2016. Getty Images
Selena Gomez
BEST: Selena Gomez was another celebrity who rocked the red carpet at the 2016 iHeartRadio Music Awards in Inglewood, California, on April 3 in a bright jumpsuit with side cut-outs. Getty Images