Gabe Ginsberg/Getty Images for iHeartMediaThe 2019 iHeartRadio Music Festival is on and popping!
Now in its eighth year, the two-day event hosted by Ryan Seacrest boasts its most star-studded performance lineup yet. Miley Cyrus, Alicia Keys and Camila Cabello will take the stage inside T-Mobile Arena in Las Vegas, in addition to Billie Eilish, Backstreet Boys, Cage The Elephant, Chance The Rapper, Def Leppard, French Montana, Green Day, Halsey, Heart, H.E.R., Mumford & Sons, Tim McGraw, Zac Brown Band, Hootie & the Blowfish, Marshmello and Steve Aoki with special guests Darren Criss and Monsta X.
But if you weren't able to snag a ticket to the sold-out festival, have no fear!
Performances will be broadcast live via iHeartMedia radio stations throughout the country, and The CW will also exclusively livestream both nights of the festival via The CW App and CWTV.com. Then on Oct. 2 and Oct. 3, The CW will air a two-night television special highlighting the event's greatest moments.
Check out all the star sightings from the highly-anticipated weekend in our gallery below:
The singer rocks out.
The artist takes the stage.
Vivian Campbell and Phil Collen address the crowd.
The band's frontman Joe Elliott rocks out.
Step inside, walk this way.
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.
The Pretty Little Liars alum is all smiles.
The On-Air With Ryan Seacrest co-host shines in makeup by Emma Willis.
The two take the stage.
The artist performs onstage.
The Hills: New Beginnings star is all smiles after getting glammed by Emma Willis.
The singer strikes a pose.
The singer strikes a pose.
The legendary singer looks red hot, hot, hot on the carpet with her crimson-colored leather coat and matching makeup.
Before hitting the stage, the popular K-Pop group strikes a pose!
The "Shameless" singer brings the heat to the red carpet with flirty two-piece set, pearl-adorned choker and black knee-high boots.
One word: Fire! The "Old Town Road" singer brings the heat to the music festival with a stellar performance and equally bold ensemble.
The legendary country singer goes bold and risqué for the star-studded occasion with his very unbuttoned shirt, form-fitting pants and black tie.
After enjoying a night of music, the Bachelor Nation couples enjoy a late-night meal at Shake Shack.
Backstreet's back alright! The iconic boy band hits the stage on Saturday.
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.
The Midway actor spices things up on the red carpet with this bold suit.
The Green Day frontman rocks out on Saturday and looks good while doing so.
The "Slide" rapper brings down the house with his larger-than-life performance at the music festival.
The Bachelorette star is all smiles as he poses for pictures on the red carpet.
Beverly Hills, 90210 reunion! The co-stars strike a pose on the red carpet with Tori looking over-the-top fabulous in her silver sequins gown.
The famed actor steps out for the star-studded even on Saturday.
Hollywood's busiest star will serve as the iHeartRadio Music Festival's host.
Days after debuting her new song "Transform," the America's Got Talent judge heads to Las Vegas for a night out on the town.
The Bachelor Nation bromance lives on! The iHeartRadio podcast hosts enjoy dinner and shakes at Planet Hollywood before an evening of music.