Florida Georgia Line lit up the stage -- literally -- at the 2015 iHeartRadio Music Awards on Sunday night (March 29), performing their newest single "Sun Daze."

Brian Kelley and Tyler Hubbard roamed the stage, which featured giant light-up letters spelling out "Sun Daze" and palm trees, while singing the tune's feel-good, party-like-the-week-doesn't-start-tomorrow lyrics. The guys took advantage of the fact that the stage area was on the same level as the audience, wandering up to those seated nearby.

"Sun Daze" became FGL's sixth No. 1 in February.

“We are real proud of “Sun Daze” because that song came about so late in the game. It was one of the last ballpark tour dates we did with Nelly, but we were still finishing up the album and inspired to write that day,” Kelley says. “We thought we pretty much had every song we wanted, but this one definitely kicked one of the songs off. It shows that, right down to the wire, you need to keep writing and stay in your creative zone. We knew we had something special.”

Florida Georgia Line's "Dirt" was also nominated for Country Song of the Year at the 2015 iHeartRadio Music Awards. They are also up for five awards at the upcoming 2015 ACM Awards and are continuing their 2015 Anything Goes Tour.

See Red Carpet Photos From the 2015 iHeartRadio Music Awards

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