The Rains of Castamere (A Song Of Ice And Fire/Game of Thrones)
Posting this is much easier than trying to explain what “Filk” is to people
I mean, as soon as I hear they were making a show of ASOIAF I was like, “OMG There going to be so much filk they’ll have to write”
It’s impossible to explain what Filk is to people who don’t read fantasy.
The Rains of Castamere was (in the books) a song commissioned by Tywin Lannister to commemorate the utter annihilation of some family that rose up against house Lannister a few decades before the events in ASOIAF. So basically, in order for it to be in the show they have to hire musicians to make it a real song.
BONUS: Bronn singing The Rains of Castmere Before The Battle of Blackwater