Regardless of the differing qualities, Johnny Cash’s covers of some of the world’s most iconic tunes are a testament to his dedication to the craft. Not just in country music, but in all of music.

It was so impactful that Trent Reznor, the lead man for Nine Inch Nails and the writer of the song, once admitted that the song wasn’t his anymore. Cash had made the dark, emotional track his own, and ...