Florida Georgia Line is an American country duo consisting of lead vocalist, Tyler Hubbard and backing vocalist, Brian Kelley. They have achieved major success since their inception and are one of the most successful country music acts. Their 2012 debut single "Cruise", which remains their most popular song, broke two major sales records: it was downloaded over seven million times, making it the first country song ever to receive the Diamond certification, and it became the best-selling digital country song of all time, with 24 weeks at number one, until it was surpassed in July 2017 by Sam Hunt's "Body Like a Back Road". "Cruise" helped to pioneer a style of country music known as "bro-country", which incorporates production elements from rock and hip-hop music, and tends to cover subject matter such as partying, drinking, driving trucks and romantic attraction. Much of their subsequent music has been tagged with the "bro-country" label as well.