Gorilla Tag, often shortened to GTag, is a virtual reality game in which players move and interact as gorillas, and its community has built a large library of short meme sounds around that monkey-themed gameplay. The K9 Song circulates on soundboards as one of those community clips, shared by players for edits, streams, and short videos rather than as an official game track. Its short length and easy-to-remember tune help it keep circulating, especially among creators making lighthearted Gorilla Tag content.