Led Zeppelin IV

I cannot live without this album—an all-time classic that ripens with age (mine) and has such rich variety and depth that I'm constantly learning new things about the musical relationship of the four band members. Bonzo is a total madman, JPJ is a killer bassist, Page is one of the all-time greatest songwriters to ever pick up a guitar, and Plant, well, the band wouldn't exist without his searing vocals.  —Chris Davenport, pro skier, Aspen, CO