Florida Georgia Line have cruised into a new place in history.

The duo's debut single, 'Cruise,' from their platinum-selling freshman album, 'Here's to the Good Times,' has become the best-selling country digital single of all time, according to ABC News Radio. The track has sold 6.3 million copies.

Their label, Big Machine Records, took to Facebook to congratulate them on their newest success.

'Cruise' has been breaking records since it first hit the airwaves in 2012. It stayed at the No. 1 spot for an astonishing 24 weeks, making it the longest time a country song has held that spot in Billboard's 69-year chart history.

The sales of 'Cruise' were bolstered by the release of a remix of the tune that included a guest appearance by rapper Nelly, which introduced Florida Georgia Line to the pop and adult crossover audience as well.

The duo, made up of Brian Kelley and Tyler Hubbard, say the song is a strong indication of what fans can expect from them in the future.

"‘Cruise’ gave our listeners a good taste of what we’re all about, sound-wise," Kelley says. "It’s a feel-good song, but I think with every song on the album, people are going to be a little bit surprised and will get a glimpse of what we can do. There’s a little bit of hip-hop, a little bit of rock, little bit of this, little bit of that in every song, so they’re not going to get sick of the album. There’s not a song that they would necessarily skip.”

In spite of their success, which also includes three more No. 1 singles with 'Get Your Shine On,' 'Round Here' and 'Stay,' the FGL guys say it's really their fans who deserve the credit.

“You know, it’s just been so cool to see our fans rally behind us and support our music,” Kelley says. “It’s amazing to see such passionate fans that stand outside and wait in line to buy tickets. Nobody told us how cool and passionate our fans would be.”

Florida Georgia Line are already putting the finishing touches on their sophomore album, which they say will "diverse," with "a little something for everybody."

The duo will have to juggle working on the album with time on the road. They will join Jason Aldean for his Night Train Tour in the first part of 2014, followed by headlining their own Here's to the Good Times trek. See all of their upcoming concerts here.

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