More than anybody who came before them, Florida Georgia Line proved that country, pop, R&B and hip-hop could do more than just coexist. Tyler Hubbard and Brian Kelley created a game-changing musical phenomenon by tying twang and rap together in a uniquely Southern way. The duo's blend of the earthy and the urban not only made them superstars, it kickstarted an entire subgenre that was apparently out there waiting for an avatar. And when they take a breather from the rousing party anthems and raps, they're equally skilled at delivering sentimental ballads.