The scream comes from commercials for K-Fee, a German energy drink brand, released in 2004 as part of its Wide Awake campaign. Each spot showed a tranquil landscape or road before cutting abruptly to a screaming gargoyle or zombie face. Shared on early video sites and forums, the clips became a template for internet screamers and were reused in pranks like the Scary Maze Game. The audio alone outlived the ads and remains a shortcut for a sudden scare.