2016 iHeartRadio Music Festival | Entertainment News, Photos, and Videos

Idina Menzel lets her hair down while posing backstage at the 2016 iHeartRadio Music Festival at T-Mobile Arena on Saturday night (September 24) in Las Vegas.

The 45-year-old Broadway star showed off her gorgeous new engagement ring from fiance Aaron Lohr for the first time!

According to E! News, the vintage-inspired, 2-carat ring is worth $30,000.

She announced that Aaron popped the question this week.

Also pictured below: Idina wearing comfy clothes while out earlier in the day in Los Angeles.

10+ pictures inside of Idina Menzel out and about this weekend…More Here! »

Daya brightens up the stage in a hot pink striped look at the 2016 iHeartRadio Music Festival on Saturday (September 24) in Las Vegas.

The 17-year-old singer hit the stage along with Alessia Cara at the festival, before joining The Chainsmokers for their collaboration, “Don’t Let Me Down”.

PHOTOS: Check out the latest pics of Daya

Backstage, Daya and Alessia hung out with Sabrina Carpenter and Bea Miller where they melted over the young puppies they had there.

“thank u @iHeartRadio music festival for letting us play u some tuuuunes,” Alessia later tweeted with a pic of the massive crowd.

FYI: Sabrina is wearing Aritzia pants.

40+ pictures inside of Daya, Alessia Cara, Sabrina Carpenter and Bea Miller…

JoJo Fletcher poses with her fiance Jordan Rodgers while having fun at the 2016 iHeartRadio Music Festival after-party at Jewel Nightclub at the Aria Resort & Casino on Saturday night (September 24) in Las Vegas.

The cute couple was joined by former Bachelorette finalist Luke Pell and Bachelor contestant Becca Tilley.

JoJo and Jordan also attended the festivities the night before.

“I think it’s definitely a question, but right now we’re just really enjoying being together,” she told ET about a possible televised wedding. “You know, it’s funny, we got to be together on the show, but we haven’t really dated. So this has been such a fun time to move into our first home together, and to go on dates.”

FYI: JoJo is wearing a For Love and Lemons top.

10+ pictures inside of JoJo Fletcher and Jordan Rodgers in Vegas…More Here! »

Christina Grimmie was immortalized by iHeartRadio during the annual festival in Las Vegas on Friday night (September 23).

The radio network put together a montage of Christina‘s YouTube covers and videos in a moving tribute. Christina actually won the iHeartRadio Rising Star contest in 2015.

Earlier this year, Christina was fatally shot by a gunman in Orlando during her meet and greet.

Watch the video below and remember Christina with us all.

Ariana Grande and Hailee Steinfeld set the stage on fire during the iHeartRadio Music Festival on Saturday (September 24) in Las Vegas.

The two singers performed just ahead of Zedd, who truly set off fireworks during his performance at the annual festival.

Earlier in the day, Hailee performed during the Daytime Village.

PHOTOS: Check out the latest pics of Ariana Grande

The CW stars Mekhi Phifer, Riley Smith, Justin Baldoni, and Tori Anderson were also seen at the event.

FYI: Ariana is wearing a Versus Versace coat. Hailee is wearing a Bryan Hearns top.

40+ pictures inside of Ariana Grande, Hailee Steinfeld and Zedd…

Britney Spears commands the crowd during her fierce performance at the 2016 iHeartRadio Music Festival on Saturday (September 24) in Las Vegas.

The 34-year-old singer invited G-Eazy to the stage to close out her set, and the duo performed “Make Me” as well as G-Eazy‘s “Me, Myself & I” – with Britney singing Bebe Rexha‘s vocals – before confetti showered over them.

Britney also performed some of her own famous tracks, including “Toxic,” “Womanizer,” and “(You Drive Me) Crazy.”

If you missed the show, you can still check out Britney during her residency at Las Vegas’s Planet Hollywood!

30+ pictures inside of Britney Spears and G-Eazy on stage… More Here! »

Lea Michele poses on the red carpet while arriving at the 2016 iHeartRadio Music Festival on Saturday (September 24) in Las Vegas.

The 30-year-old Scream Queens actress went pretty in a silver and black long-sleeved mini-dress with black strappy sandals.

PHOTOS: Check out the latest pics of Lea Michele

Also on the red carpet were Lea‘s Scream Queens co-stars, Taylor Lautner and John Stamos.

The guys posed for pictures together before heading into the event.

FYI: Lea is wearing a David Koma dress, Stuart Weitzman shoes, Stephen Webster jewelry, and a Lee Savage clutch.

10+ pictures inside of the Scream Queens co-stars arriving at the iHeartRadio Festival…More Here! »