Initially embraced as "the Southern Strokes" for their resurrection and reinvention of Dixie-styled rock & roll, Kings of Leon steadily morphed into an experimental rock outfit during the 2000s. The Tennessee-bred quartet debuted in 2003 with the Holy Roller Novocaine EP, whose blend of raw, unpolished boogie rock was further explored on their debut full-length, Youth & Young Manhood. Such revivalist music was matched by a similarly revivalist appearance -- including long hair, mustaches, and tight-fitting denim -- and Kings of Leon experienced immediate popularity in the U.K....