Kings of Leon is an American rock band formed in 1999 in Nashville, Tennessee. The band consists of brothers Caleb, Nathan, and Jared Followill, along with their cousin Matthew Followill. They gained popularity with their unique blend of Southern rock, alternative rock, and garage rock, characterized by Caleb's distinctive vocals and the band's energetic sound. The band's breakthrough album, Only by the Night, released in 2008, featured hit singles like "Sex on Fire" and "Use Somebody." Kings of Leon has received several awards, including Grammy Awards, and continues to be influential in the rock music scene, known for their dynamic live performances.