The hee-hee is a signature vocal ad-lib associated with Michael Jackson’s recordings and live performances rather than one clearly identified standalone source. His distinctive delivery became widely recognizable through his music, concerts, impersonations, and popular-culture references. Short isolated versions later circulated in reaction clips and meme edits, where the vocal works as instant shorthand for playful confidence or mischief. It remains popular because it is brief, easy to synchronize with visual punch lines, and identifiable even without musical accompaniment.