As someone who discovered Johnny Cash late (in the past decade) I was really surprised to find out that Johnny Cash covered Hurt by Nine Inch Nails, and not the other way around. I never considered the time overlap in their careers.

Cash covered a number of songs, another notable example was of Nick Cave's The Mercy Seat.

https://en.wikipedia.org/wiki/The_Mercy_Seat_(song)

Trent commented on it: https://youtu.be/_8NTVzubfqE