The Psy Horse Dance meme stems from the 2012 global sensation 'Gangnam Style' by South Korean musician PSY. The music video featured a unique 'invisible horse' dance move that quickly became a worldwide phenomenon, making it the first YouTube video to surpass one billion views. While the song itself is a satire of the wealthy lifestyle in Seoul's Gangnam District, the horse dance became a universal symbol of upbeat, viral fun. In meme culture, it is often used to represent celebratory moments, high energy, or nostalgic references to the early 2010s internet era.