The Mountain Goats’ John Darnielle has recorded a new song about Star Wars called “The Ultimate Jedi Who Wastes All the Other Jedi and Eats Their Bones.” The song began as a joke between Darnielle and Star Wars: The Last Jedi director Rian Johnson (who previously collaborated with Darnielle on Mountain Goats videos), and eventually evolved into a real recording. As the title suggests, the song is about a Jedi that consumes the bones of other Jedi. It features self-referential lines like, “The cameras Rian’s got these days are unimaginably high-res.” Listen below via Johnson’s SoundCloud account. The Last Jedi is out December 17, 2017.