League of Legends is a long-running multiplayer online battle arena game from Riot Games, and its client has long used short notification sounds to alert players to incoming messages while they play. As streams, highlight reels and reaction videos grew, editors began lifting the familiar chime to signal chat messages, viewer comments and unexpected replies in their own content. Its staying power comes from that shared recognition: millions of players know the sound instantly, so it works as a quick shorthand for communication, teamwork and online banter without needing any explanation.