Simple premise. What songs were inspired by another work or if you don't know one of those then what songs do you know because of them. Song and work is it is based on or from.
For instance.
Led Zeppelin - Ramble On
Maybe not their most well know work nowadays but generally considered among their top songs.
However with lines like
"'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"
So Lord of the Rings then, and not an uncommon one in rock and heavy metal (Led Zeppelin having several others. There are plenty of bands that are inspired by books as well -- Harry Potter had a bit of thing of spawning bands that went under what some would dub Wizard Rock.
Warhammer (40K in this case) has a fair few
Hard bass tribute
Parody of classic
Or perhaps you mostly know Ace of Spades thanks to Shoot 'em Up (by the way if you are after a cheesy funplay film then go for it).
Many of you might know the big iron song that the one above is parodying because of Fallout.
Did Billy and Mandy/Grim and Evil introduce you to Voltaire?
Does not have to be fiction. If anybody here ever watched various extreme sports videos then they were probably introduced to any number of bands (to say nothing of games), though the copyright wild west of the 80s, 90s and 2000s seems to have died off. For instance would I have known of Tom Waits if not for https://www.skatevideosite.com/coliseum-p-j-ladds-wonderful-horrible-life/ , absolutely but plenty of friends had their first experience thanks to that one (I know that technically makes me a bad friend but hey).
For instance.
Led Zeppelin - Ramble On
Maybe not their most well know work nowadays but generally considered among their top songs.
However with lines like
"'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"
So Lord of the Rings then, and not an uncommon one in rock and heavy metal (Led Zeppelin having several others. There are plenty of bands that are inspired by books as well -- Harry Potter had a bit of thing of spawning bands that went under what some would dub Wizard Rock.
Warhammer (40K in this case) has a fair few
Hard bass tribute
Parody of classic
Or perhaps you mostly know Ace of Spades thanks to Shoot 'em Up (by the way if you are after a cheesy funplay film then go for it).
Many of you might know the big iron song that the one above is parodying because of Fallout.
Did Billy and Mandy/Grim and Evil introduce you to Voltaire?
Does not have to be fiction. If anybody here ever watched various extreme sports videos then they were probably introduced to any number of bands (to say nothing of games), though the copyright wild west of the 80s, 90s and 2000s seems to have died off. For instance would I have known of Tom Waits if not for https://www.skatevideosite.com/coliseum-p-j-ladds-wonderful-horrible-life/ , absolutely but plenty of friends had their first experience thanks to that one (I know that technically makes me a bad friend but hey).
Or others 
. Saves on time, soap, water and money having to wash them.