The format comes from JoJo's Bizarre Adventure, the 2012 anime that closed episodes with a stylised To Be Continued arrow over the opening of Roundabout by Yes, first released in 1971. In 2016 editors began lifting the sting for short online videos, freezing the action at the worst possible moment while the bass line built. The format survived Vine and spread through YouTube and TikTok because it needs no explanation, the music alone promises a disaster the viewer never gets to see resolved.