Complete List of iHeartRadio Music Award Winners

May 2, 2014 -- Rihanna was the top winner at the first-ever iHeartRadio Music Awards in Los Angeles Thursday night.

She was named artist of the year at the fan-voted ceremony. She also collected the prizes for song of the year, for "Stay"; hip-hop/R&B song of the year, for "Pour It Up"; and best fan army, for her Rihanna Navy.

Not bad for an artist who arrived after the show began because she was stuck in traffic.

Pharrell Williams was saluted by peers and collaborators such as Gwen Stefani before performing a medley of his hits, including "Get Lucky" and "Happy." He then accepted the Innovator Award.

Billy Ray Cyrus was on hand to accept the best lyrics award on behalf of his ailing daughter, Miley, who won for "Wrecking Ball." "As a dad, I can't begin to tell you how much your thoughts, your love, your support for my family and Miley mean to all of us,” he said.

Miley Cyrus' 'Symptoms Have Returned,' More Shows Postponed

Lorde delivered a videotaped speech for her best new artist award.

Performers on the night included Pitbull, Shakira, Ariana Grande, Ed Sheeran, Bastille, Blake Shelton, Thirty Seconds to Mars and Luke Bryan. After opening the NBC broadcast, Pitbull took a jab at Los Angeles Clippers owner Donald Sterling, who was suspended for life by the NBA this week for making racing comments.

"Now everyone that's here is a who's who, a what's what, the anybody's of all anybody's, except, of course, for Donald Sterling,” Mr. Worldwide said. “You can take a picture with whoever you want tonight, even Magic Johnson."

The awards show also featured the debut of the new Michael Jackson single "Love Never Felt So Good," which was introduced by a dancing Usher. The track, featured on the upcoming posthumous album “Xscape,” is now available for purchase at digital outlets. A duet version, featuring Justin Timberlake, has been released, too.

Throughout the night, the show saluted the Los Angeles music scene, with videotaped comments from Katy Perry, Steven Tyler, The Black Keys and more.

Here's a complete list of winners:

Hip-Hop/R&B Song of the Year“Pour It Up,” Rihanna

Best Collaboration“Timber,” Pitbull feat. Kesha

Best New Artist Lorde

Best Lyrics“Wrecking Ball,” Miley Cyrus

Best Fan ArmyRihanna Navy

iHeartRadio Young Influencer AwardAriana Grande

iHeartRadio Instagram AwardAustin Mahone's Mahomies

Alt Rock Song of the Year"Demons," Imagine Dragons

Song of the Year"Stay," Rihanna feat. Mikky Ekko

Country Song of the Year“Boys ‘Round Here,” Blake Shelton

EDM Song of the Year“Wake Me Up,” Avicii

iHeartRadio Innovator AwardPharrell Williams

Artist of the YearRihanna