Most of you probably already know this, but I didnt and I found it very cool. I was listening to some new Led Zeppelin songs I downloaded the other day, and I thought I heard him say "Mordor" in "ramble on". So out of curiosity I looked up the lyrics, and low and behold I was correct.
Some of my friends said that quite a few of their songs were based on LotR, so I looked it up and found a couple neat resources.
http://www.geocities.com/Athens/2406/
http://www.ledtolkien.com/
Anyway, I thought it was interesting, and it has a little more of a solid foundation than the whole "play stairway backwards" thing.
"How years ago in days of old
When magic filled the air,
T’was in the darkest depths of mordor
I met a girl so fair,
But gollum, and the evil one crept up
And slipped away with her."