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7. Johnny Cash
His prison concerts and Man In Black albums in the 60s and 70s were classic, but Johnny Cash's albums stopped selling so well in the 1980s, and there were ill-advised forays into children's music and Christmas songs. But in the late 90s his collaboration with rap/hard rock producer Rick Rubins produced some of the most critically lauded records of his career, the American Recordings. Most famously, his epitaph was a cover of Nine Inch Nails' Hurt, which won plaudits across the globe.