Psy's Gangnam Style song and dance spread like wildfire late last year, spawning thousands of video remakes. Why was it so catchy? A family may have (unscientifically) proven it's a natural human trait.

While on a car trip, a family decided to play Gangnam Style as a their baby slept in a car seat. The baby's instant reaction to the music is not only cute, but suggests there may be something to the idea that there is a basic Gangnam instinct.