and his remake of "Hurt" from the Nine Inch Nails song and then Rubin sharing the story behind it was cool. (1:45:43 in the video)

I wasnt a big Cash fan so I didnt realize his career was essentially over, that he had been fired by his record label and reduced to playing in dinner theaters, before his revival and 6 albums he did with Rubin. Pretty interesting.

https://www.youtube.com/watch?v=qkwISstQQVw&t=6202s