Have you ever come across a song it hurts to listen to?
But it's so beautiful that you can't stop.
For me, that would be Elliott Smith's "Everything Means Nothing to Me."
You can hear it here (ignore the video) and see the lyrics here.
As far as I'm concerned, the man was a poet.
All the greatest songwriters are.
As for the music, this has to be the most disturbing, haunting piece I've yet heard.