23 years ago, a Panamanian musician recorded a mumbled, gibberish placeholder vocal for a song. He planned to get back to it later to write actual lyrics, but the rough demo circulated online. Another internet user combined the audio with a looping video of actor Adam West dancing as Batman, which amplified the track into a full meme phenomenon.
Seeing the massive viral reaction, the producers officially released the song with the original gibberish left completely intact. It became so popular that it made the top 20 on the official UK Singles Chart.