This clip comes from Friday Night Funkin, the indie rhythm game that became widely popular online in 2020 and 2021. The countdown is part of the game's round intro and spread through gameplay videos, mods, memes and short-form edits. Because the phrase is so short and recognizable, it kept circulating beyond the game itself as a simple start signal for challenges, races and beat-synced transitions. It is still used because viewers immediately understand that something is about to begin.