Miley Cyrus
The singer rocks out.
T-Pain
The artist takes the stage.
Def Leppard
Vivian Campbell and Phil Collen address the crowd.
Def Leppard
The band's frontman Joe Elliott rocks out.
Def Leppard
Step inside, walk this way.
Bachelor Nation
After the show it's the unofficial after party at Shake Shack with Ashley Iaconetti, Jared Haibon, Tayshia Adams, Mike Johnson, Dean Unglert and Caelynn Miller-Keyes.
Lucy Hale
The Pretty Little Liars alum is all smiles.
Tanya Rad
The On-Air With Ryan Seacrest co-host shines in makeup by Emma Willis.
Marshmello & Kane Brown
The two take the stage.
Chance the Rapper
The artist performs onstage.
Audrina Patridge
The Hills: New Beginnings star is all smiles after getting glammed by Emma Willis.
H.E.R.
The singer strikes a pose.
Miley Cyrus
The singer strikes a pose.
Christina Aguilera
The legendary singer looks red hot, hot, hot on the carpet with her crimson-colored leather coat and matching makeup.
Monsta X
Before hitting the stage, the popular K-Pop group strikes a pose!
Camila Cabello
The "Shameless" singer brings the heat to the red carpet with flirty two-piece set, pearl-adorned choker and black knee-high boots.
Lil Nas X
One word: Fire! The "Old Town Road" singer brings the heat to the music festival with a stellar performance and equally bold ensemble.
Tim McGraw
The legendary country singer goes bold and risqué for the star-studded occasion with his very unbuttoned shirt, form-fitting pants and black tie.
Caelynn Miller-Keyes, Dean Unglert, Jared Haibon & Ashley Iaconetti
After enjoying a night of music, the Bachelor Nation couples enjoy a late-night meal at Shake Shack.
Backstreet Boys
Backstreet's back alright! The iconic boy band hits the stage on Saturday.
Teddi Mellencamp
After announcing her new iHeartRadio podcast Teddi Tea Pod, the Real Housewives of Beverly Hills star shows off her growing baby bump in this chic ensemble.
Darren Criss
The Midway actor spices things up on the red carpet with this bold suit.
Billie Joe Armstrong
The Green Day frontman rocks out on Saturday and looks good while doing so.
French Montana
The "Slide" rapper brings down the house with his larger-than-life performance at the music festival.