Jason Aldean and Brantley Gilbert were among the winners at the 2015 iHeartRadio Music Awards on Sunday night (March 29).

Aldean's "Burnin' It Down" picked up Country Song of the Year, and the cameras caught the singer celebrating with Florida Georgia Line's Tyler Hubbard -- one of the song's writers -- on his way to the stage. "Burnin' It Down" bested Lady Antebellum‘s “Bartender,” FGL’s “Dirt,” Eric Church’s “Give Me Back My Hometown” and “Play It Again” by Luke Bryan for the trophy.

Aldean thanked his new wife Brittany Kerr, his two daughters, the song's writers and his fans during his acceptance speech, then performed the award-winning tune a few minutes later.

Gilbert was visibly surprised when his name was called as the winner of the all-genre Renegade award, as he noted during his acceptance speech.

"I wasn't expecting that one," he said. "It was an honor to be in this category."

The singer was up against Iggy Azalea, Charli XCX, Hozier and Meghan Trainor in the category.

Among the 2015 iHeartRadio Music Awards' other winners was Taylor Swift, who received Artist of the Year, Song of the Year, for "Shake It Off," and the first award of the night, for Best Lyrics.

"Writing lyrics is my favorite part of my job," she said during her acceptance speech for Best Lyrics, also poking fun at the often-misheard "long list of ex-lovers" line and adding, "I’m very lucky that that line and my song was misunderstood all over the world and spent eight weeks at No. 1."

A few other country artists were also nominated at the 2015 iHeartRadio Music Awards: Cole Swindell was up for Best New Artist, while Church's fans, the Church Choir, were nominated for Best Fan Army, and Bryan had a nod in the evening’s biggest category, Artist of the Year.

See Red Carpet Photos From the 2015 iHeartRadio Music Awards

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