Florida Georgia Line, the duo made up of Brian Kelley and Tyler Hubbard, are putting the finishing touches on their sophomore album. The pair, who wrote about half of the new set of tunes, say the hardest part is picking which songs will finally make it on the record.

"Honestly, it's hard to pick one I'm more pumped about than the next," Hubbard tells Rolling Stone Country. "All of them have their own flavor, their own taste, and all serve their purpose. They fit their slot on the record and it's fun to listen to all the songs and not want to skip one. That's one of our goals when we're recording -- slam an album full of singles and make people want to listen to every song."

The album will be the follow-up to their multi-platinum 'Here's to the Good Times,' which boasted five No. 1 singles, including their debut 'Cruise,' which sold more than seven million copies.

"It's been a hell of a ride. The past couple years we're able to start seeing them clearly now. It all happened so fast, and it's cool to start reminiscing and looking back at some pictures," Kelley adds. "That's also affected the album: reminiscing and looking at all the good times that 'Here's to the Good Times' allowed us to have."

The guys just released their new single from the upcoming project, 'Dirt,' which soared to the top of the charts, shattering the record previously held by Taylor Swift for most-added song in a week. It's only a hint, they claim, of what the rest of the new project will contain.

“We’re trying to step our game up," Kelley explains. "We’ve got a couple of awesome songs that we’re pumped about everybody hearing. Can’t wait to get the new stuff out. It’s definitely gonna have evolved from record one, but it’s still going to have that FGL feel, but we’re going to take some chances here and there.”

In the past few years, the singers have gone from relative obscurity, from students at Belmont University to dominating the charts. But in spite of their success, both men insist very little has changed about either of them.

"We're still Tyler and BK and we always will be," Kelley maintains. "A lot of people maybe know who we are and know what we look like, but we are as focused as ever on the music, on our fans, and the road."

Florida Georgia Line are spending the next few months headlining their own shows, as well as serving as the opening act on Jason Aldean's Burn It Down Tour. See all of their upcoming shows here.