Bring it back!

So, the other day I was watching a fan-made video game music video (VGMV) about The Legend of Zelda. The song used was The Battle of Evermore by Led Zeppelin. While watching this I heard something in the song that I never have before. "The ring wraiths ride in black." Then it hit me. The whole song was about The Lord of the Rings. All this time and I had no idea. After pointing this out, my friend, Evan informed me that Zep does a couple of LoTR songs. I, however, don't know what they are.

So, here's my question. What are the other LoTR songs by Zep? Does anyone know of any other LoTR songs by other bands, because a LoTR mix would be alot of fun.

Exception: Please exclude Blind Guardian because all they do are LoTR songs. They even have an album that retells The Silmarillion.