With their close-knit vocal harmonies, Ira and Charlie Louvin had a completely distinct sound—later influencing the Everly Brothers, Johnny Cash, and the Byrds—and for two decades they balanced gospel numbers with secular country music. This 56-song retrospective includes the Country Music Hall of Famers' hits "Cash on the Barrelhead," "Don't Laugh," "You're Running Wild," "Knoxville Girl," "When I Stop Dreaming," "Hoping That You're Hoping," and "I Love You Best of All." Here too are "Swing Low Sweet Chariot," "The Christian Life," "You'll Be Rewarded Over There," "Kentucky," "I Wish You Knew," "Pitfall," "Searching for a Soldier's Grave," and the Carter Family's "In the Pines" and "Kneeling Drunkard's Plea."