The Demon Slayer season 4 episode 1 preview video has also teased the opening song for the sequel, Mugen, performed by Japanese rock band MY FIRST STORY and musician HYDE. HYDE is known for ...

There's a fair argument to be made that Buffy the Vampire Slayer has the best theme song ... vampires, demons, and whatever else went bump in those sleepy Sunnydale nights. The song is so perfect ...