"When sound was played through the uterine wall of this fetus' mother, the fetus startled and turned the head.
Then the fetus showed all the characteristics of crying: an open mouth, increasing head tilts, a quivering chin and several irregular breaths before exhaling and settling with a turn of the head, mouthing and swallowing."
http://dsc.discovery.com/news/media/fetalcryingvideo.html