Thirty Seconds to Mars frontman Jared Leto told TheHollywood Reporter on the red carpet,"you fall in and out love with songs, but our new album is a breakthrough. It's off the beaten path," said the Oscar winner. "It really shattered our expectations."
Parenthood star Jason Ritter was one of the celebrity presenters at the iHeartRadio Awards. Ritter will next be seen in I Fought the Law, playing cult killer Charles Manson.
Juicy J chatted with THR on the red carpet, revealing: "I'm grateful I'm still here, talking to beautiful women, going to an awards show, and still going strong," he said. Having recently collaborated with Katy Perry on "Dark Horse," he told THR: "I knew it was a great record but you never know how big it'll be... it's still a hit after three months."
Scary Spice and iHeartRadio Awards presenter Mel B wore orange and black to the show. On the hope of a Spice Girls reunion: "I'm always the one who says 'yes, let's get together and do it.' I always thought there should be one."
American Idol alum Adam Lambert showed off a lighter look and green jacket as he took to the colorful carpet.
Twilight actress Ashley Greene battled the heat in a white Sass and Bide cocktail dress, having tweeted her excitement about the show earlier in the day: "Headed to the @iHeartRadio awards! Can’t wait to see the performances."
Nikki Sixx rocked shades to the ceremony.
E! host Giuliana Rancic wore a figure-hugging black dress with nude panels.
Teen heartthrob Austin Mahone, 18, was all white on the red carpet, having been nominated for Best Fan Army. His album, Secret, which he worked on for two years releases on May 27. The singer is also set to go on tour this month. His love for Rihanna is no secret as the teen proclaimed his admiration with her and her music throughout the night, even after winning the Instagram award.
Billy Ray Cyrus
Country star -- and Miley's dad -- Billy Ray Cyrus attended the awards in the wake of the news that his daughter canceled more dates on her Bangerz tour. "We're getting her back to normal," when asked about the family support for Miley. "She had a bad reaction to antibiotics, but she's feeling better and Bangerz is back on tour," said the country singer who just released a song with JohnnyCash that focuses on a musical tribute to the "legends and teachers that opened up the doors for guys like [him]."
Hilary Duff flashed some leg in a velvet black dress with her blonde hair piled high in an elaborate up do. On her new album: "It’s definitely pop music, but the best way to describe it is an indie-earthy vibe to it. It’s folky and not quite country. I’ve been working with great people and writing every day. It speaks about what I’ve been through in the past 5 years-- the highs and the lows."
Caroline Boyer and Luke Bryan
Country star Luke Bryan and wife Caroline Boyer reflected the diverse musical genres at the iHeartRadio Awards.
Baby Daddy star Chelsea Kane combined a floral football jersey and pink hair for a very unique look.
Dancing With the Stars' Cheryl Burke opted for a serious ensemble of leather, studs and shiny silver, while showing off both a flash of stomach and her dancer's legs.
The Lost Boys star and '80s teen idol Cory Feldman tapped into his inner rock star in a black leather jacket and a sheer shirt. He collaborated with Thirty Second Mars on the song they performed at the awards, "City of Angels."
Dressed in layers of pink lace, newlywed Courtney Bingham was still in wedding mode following her recent nuptials to Motley Crue rocker Nikki Sixx.
Dancing With the Stars' Karina Smirnoff breezed her way down the carpet.
Lil Jon donned tie-dye for the carpet.
Mya looked confident on the carpet. She recently had a launch party for her EP "Sweet 16" in Las Vegas. In connecting with social media, she told THR she employed some fans recently in picking up a graphic artist from Mexico she found on Twitter.
Modern Family's Nolan Gould opted for a '70s style graphic shirt and bright orange trousers for the trendy show.