Johnny Cash's cover of his song is on a whole different level. He took a wildly popular, amazing song... and using the exact same words, he turned it into a completely new/different song.
You hear this man, who knows hes finally reached the end of his road... and he's so full of regret. Regrets who he's become, who he's been, how things happened. He mourns those he's lost... almost more so not because they're gone but because it took him til the end of his life to realize what's important.
Truly... truly an emotional masterpiece in the collection book of Johnny Cash.
When Trent Reznor wrote this song, he was singing it from a different place. It was dark and brooding. And then comes JR Cash. It was as though he was singing his eulogy. He knew his time was short, and this was the song to be remembered for all time.
(This one gets me every time I play it)