Pediatrician Dr. Robert Hamilton shares a secret of the trade in how to calm a crying baby. He suggests that you hold them at a 45 degree angle and shake, shake, shake their booty.

Who knows why it works? Maybe the baby is too confused to cry any more when someone suddenly starts wiggling their butt around. If you’re a parent of a newborn, this video may be lifesaving. Even if you’re not it’s worth the watch for the calming ambiance and adorable, tiny humans.