The leitmotif comes from JoJo's Bizarre Adventure: Diamond Is Unbreakable, the 2016 anime arc centred on the serial killer Yoshikage Kira and his Stand, Killer Queen. Its recurring musical theme follows Kira through moments of quiet menace and sudden violence, making it instantly recognisable to fans. Like Giorno's Theme and Za Warudo, it spread through anime edits, villain compilations and meme videos, where a few seconds are enough to signal danger. It remains popular because it turns anticipation itself into the joke.