Squid Game, the South Korean survival drama released on Netflix in 2021, opens with the Red Light, Green Light game overseen by a giant motion-sensing doll known as Young-hee. The doll sings a traditional Korean children's song while players move, and anyone caught moving after it stops is eliminated. Clips of her voice spread quickly online and in meme edits after the show became a global hit, and creators still reuse the short singing snippet to instantly signal a deadly children's game and build suspense.