Kings of Leon play old men's music in the spirit of youth -- with a straight bat and unparalleled enthusiasm. Unlike The Strokes, there is no sense of textbook irony, pastiche, or secondhand poses. They are for real. "Youth and Young Manhood" is nothing more than a great rock 'n' roll album. Driven by Caleb Followill's peculiarly affecting voice -- surely the most indecipherable since Michael Stipe circa 1983 -- their songs are basic, succinct, and shorn of effects. Recommended.