The line comes from Glee, the American musical television series that followed a high school glee club and became a pop culture staple during its run. Its recap opener was designed to bring viewers up to speed in seconds, and that brisk, self-aware style made it easy to lift out of context. Online, creators adopted it as a ready-made intro for their own summaries, using it to frame drama, gossip and storytimes as if they were episodes of a show. It endures because the format is instantly recognisable and works for almost any chaotic sequence of events.