There is no single famous source behind this cheering kids clip, which is part of why it works so well as a general reaction sound. Similar recordings of children celebrating are widely used across short-form video, livestreams and meme edits, where a genuine-sounding crowd instantly signals excitement without needing any context or dialogue. Creators reach for it whenever they want a wholesome, upbeat payoff, because listeners recognise the sound of a happy group straight away and associate it with winning, surprises and good news.