The first-ever iHeart Radio Music Awards kicked off live on NBC at the Shrine Auditorium in Los Angeles. The show aired over 150 iHeart radio stations across the country, and 60 million votes have been cast for several categories of this awards show.

John Sykes, president, Clear Channel, said, "Clear Channel is the biggest music company in the world by reach, so for us to finally have a show where we celebrate and reward artists of the year that have really excelled--it's about time."

Rihanna was the big winner of the night taking home four awards, including artist and song of the year.

Performers included Pitbull, Luke Bryan, Bastille, 30 Seconds to Mars, Kendrick Lamar, Ariana Grande, Blake Shelton, Ed Sheeran, Shakira and Arcade Fire.

Pharrell Williams received iHeart Radio's innovator award with Beyonce, Oprah, Usher, Lady Gaga, Demi Lovato and Shakira speaking of Williams and his contributions to music in video messages.

"He was the person who made it cool to just be you," said Beyonce.

Williams took to the stage to do what he does best and performed a medley of songs including, "Blurred Lines," "Get Lucky" and "Happy."

Gwen Stefani then presented the award to Williams, who was visibly emotional and took a minute to soak in the moment.

"You gotta believe in something bigger than yourself," he said. "I never dreamt in a million years as a producer that I would be standing here as an artist."

Jared Leto sand 30 Seconds to Mars performed their hit song "City of Angels." During the performance, video clips featuring Kanye West, Selena Gomez and Olivia Wilde aired while they spoke on their dreams and the city of Los Angeles.

"The new album ("Love, Lust, Faith and Dreams") has been a break through of sorts. It kind of put us on a different path and I think shattered a lot of expectations," said Leto. He also talked his music doc "Artifact" telling Variety, "It taught us the lesson of a lifetime which is it's always important to fight for what you believe in."

During the show, artists like Steven Tyler, Jason Derulo, Rita Ora and Adam Levine told their L.A. story.

John Legend wrote love song "All of Me" here in L.A about his supermodel wife, Chrissy Teigen. "We met on a video shoot, so that's an L.A. story," he laughed. "My love affair with L.A. started with my love affair with my wife."

The world premiere of the late Michael Jackson's new song "Love Never Felt So Good" was aired with Usher performing to it in tribute.

Kendrick Lamar, a Los Angeles native, also performed and repped the West Coast with the Tupac and Dr. Dre anthem "California Love."

"Breaking Bad's" Aaron Paul, via video message, introduced Arcade Fire who performed from the Roxy. "I love each and every one of you beautiful bitches," said Paul. "People love it when I say bitch."

BEST LYRICS: "Wrecking Ball" - Miley Cyrus

Billy Ray Cyrus accepted daughter Miley Cyrus' award for best lyrics with "Wrecking Ball."

Hip Hop/R&B Song of the Year: "Pour It Up" - Rihanna