The Man in Black had been interested in playing a prison concert for years. After his hit in 1955, Folsom Prison Blues, prisoners had been writing to him asking if he would play in their prison. One of the appeals of Cash was ability to relate to the struggles of the everyman. Understanding himself to be a man of many contradictions, deeply religious yet also an anti-authoritarian figure, Cash lived up to his image as a "lens through which to view American contradictions and challenges."
Read more about the Man in Black.