This 1968 album was a game changer both for The Byrds and rock 'n' roll. Replacing David Crosby with country-rock innovator Gram Parsons, the band moved from chiming folk-rock to twangier tones heavily informed by Parsons' country roots. Parsons' pen was mighty, too—his yearning ballad "Hickory Wind" is among The Byrds' most affecting tunes. And faithful versions of songs by The Louvin Brothers ("The Christian Life") and Merle Haggard ("Life in Prison") enhance the country cred even further on this incredible album.