9 “Hurt” – Covered by Johnny Cash, Original by Nine Inch Nails
Near the end of the Man in Black’s life, he released his American recordings series, which featured more covers than original material. The song “Hurt” felt so personal to Johnny Cash that creator Trent Reznor was quoted saying “[I felt like] I just lost my girlfriend, because that song isn’t mine anymore.” It has since spawned countless who-covered-who debates between Cash and Nine Inch Nails.