NMIXX is a South Korean girl group formed by JYP Entertainment, and Lily is their Australian-Korean main vocalist, known for her powerful, expressive voice. This clip captures her saying 'knock knock, follow follow me' in a playful tone, and it has been shared by fans on soundboards and meme pages as a cute reaction sound. The exact recording the clip was taken from is not documented, but its spread follows the familiar pattern of K-pop fan edits: a charming idol moment gets lifted from its context and passed around until it becomes a reusable meme for edits and replies.