But the biggest hits of Cash’s career were yet to come, including an incredible eight #1 albums in an eight-year span: Ring of Fire: The Best of Johnny Cash (1963); I Walk The Line (1964); Johnny Cash’s Greatest Hits (1967); At Folsom Prison (1968); At San Quentin (1969); Hello, I’m Johnny Cash (1970); The Johnny Cash Show (1970); and Man In Black (1971).