lol, not only do they have A song, they have a TON (including an entire album based on Tolkien's "The Silmarillion" (sp?)), and they most certainly have a song called "Lord of the Rings."
Iron Maiden - Phantom of the Opera
Evergrey - Nosferatu
Blind Guardian - Lord of the Rings
There are signs on the Ring
Which makes me feel so down
There's one to enslave all Rings
To find them all in time
And drive them into darkness
Forever they'll be bound
Slow down and I sail on the river
Slow down and i walk to the hill