AJ McLean of Backstreet Boys and Lance Bass of NSYNC, who will be presenting at the ceremony, were among the early entrants, along with artists Katy Perry, Ice Spice, Lainey Wilson, Avril Lavigne, Flavor Flav, and Green Day.

Additionally, only one day after declaring their joint pregnancy, TikTokers Jesse Sullivan and Francesca Farago appeared on the red carpet in edgy black ensembles.

With nine nominations going into the evening, Taylor Swift led the field going into the ceremony. Her nominations included three for Pop Artist of the Year, Artist of the Year, and Song of the Year, for her song “Cruel Summer.”

She is closely followed by Olivia Rodrigo with seven nominations, Jelly Roll, 21 Savage, and SZA with eight each.

One unique aspect of the iHeart Radio Music Awards is that fan voting determines the winner in several categories. Best Fan Army, Best Music Video, Social Star Award, Best Lyrics, and TikTok Bop of the Year are a few of these.

Two more special awards will be given to two of the most important female musicians at this year’s ceremony: Beyoncé, who just released Cowboy Carter, will receive the iHeartRadio Innovator Award, and Cher will receive the Icon Award.

Miley Cyrus, Doja Cat, Taylor, SZA, and Olivia are among the female performers sweeping the Pop Artist of the Year category.

Similarly, male artists dominated in the Hip-Hop Artist of the Year category, with nominations for Drake, Future, Gunna, Lil Durk and 21 Savage.

But until all the awards are handed out, keep reading to see all celeb fashion at the 2024 iHeartRadio Music Awards.

Katy Perry and SZA

Meryl Streep and Cher

Beyoncé

Ice Spice

Lainey Wilson

Avril Lavigne

Jennifer Hudson

Meghan Trainor

Flavor Flav

Latto

Gavin Rossdale

JoJo Siwa

Ludacris

Jared Leto

Pete Wentz, Andy Hurley of Fall Out Boy

Jelly Roll

Tré Cool, Billie Joe Armstrong, Mike Dirnt of Green Day

GloRilla

TJ Holmes, Amy Robach

T-Pain

Jessica Betts

Rachel “Raquel” Leviss

Jesse Sullivan, Francesca Farago

Tate McRae

Tori Spelling

Niecy Nash-Betts

Morgan Franklin

Ben Higgins

Chris Olsen

Lance Bass