The aoo sound is associated with Michael Jackson, whose distinctive vocal exclamations became a signature part of his performances and recordings. Short, isolated clips of those sounds later circulated on soundboards and social video platforms, where editors reused them as quick reaction noises rather than musical samples. Because the sound is instantly recognisable and lasts less than a second, it works as a compact meme cue for surprise, excitement or playful attitude, and it continues to appear in short-form edits and reaction videos.