I'd use that as reference every time someone tried to tell me that D&D or Fantasy/Sci-Fi wasn't cool or was just for geeks.
That and songs like Iron Maiden's To Tame A Land (about "Dune") <snip good info>
According to legend, Iron Maiden originally meant to name their Powerslave album Dune, and contacted Frank Herbert (or his agent) about it. However, Frank Herbert (or his agent) didn't think this was a good idea, so they sadly relented.
Another good literature-based song is Blue Oyster Cult's Black Blade. Definitely worth a check, especially the version on Extraterrestrial Live.
Michael Moorcock actually co-wrote that one, as well as Veteran of 1000 Psychic Wars. He also wrote for and played with Hawkwind- alongside future Mötorhead bassist/vocalist Lemmy Kilmister- as well as his own band, The Deep Fix (named after a fictional band in his Jerry Cornelius stories).