The grainy recording, just 17 seconds long, captures what indeed sounds like the catchy hook to an upbeat 1980s New Wave tune, though most of the words are hard to make out. It didn’t attract much interest at first. Yet as the months passed without an identification, each proposal of a potential artist being ruled out one after another, a cultish fascination began to take hold. Two years later, it’s the most-commented thread in WatZatSong history, and there’s a 5,000-strong subreddit devoted to theories about the song. Fans have recorded remixes and covers imagining the missing verses, generated longer versions with AI, and perpetrated successful hoaxes about where the original came from. But the fact remains: no one knows the band behind “Everyone Knows That.”