2019 iHeartRadio Music Festival: See All the Stars Taking Over Sin City

Miley Cyrus, Alicia Keys and Camila Cabello are expected to perform in Las Vegas this weekend

By McKenna Aiello 21 Sep, 2019 2:39 AMTags
Julianne Hough, 2019 iHeartRadio Music FestivalGabe Ginsberg/Getty Images for iHeartMedia

The 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 EilishBackstreet BoysCage The Elephant, Chance The Rapper, Def Leppard, French Montana, Green DayHalsey, 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. 

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2019 iHeartRadio Music Awards Red Carpet Fashion

Check out all the star sightings from the highly-anticipated weekend in our gallery below: 

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.

Mike Johnson

The Bachelorette star is all smiles as he poses for pictures on the red carpet.

Tori Spelling & Ian Ziering

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.

Dennis Quaid

The famed actor steps out for the star-studded even on Saturday.

Ryan Seacrest

Hollywood's busiest star will serve as the iHeartRadio Music Festival's host. 

Julianne Hough

Days after debuting her new song "Transform," the America's Got Talent judge heads to Las Vegas for a night out on the town.

Dean Unglert & Jared Haibon

The Bachelor Nation bromance lives on! The iHeartRadio podcast hosts enjoy dinner and shakes at Planet Hollywood before an evening of music.

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View More Photos From 2019 iHeartRadio Music Festival: Star Sightings