If you're interested in dancing hair cells then
I'd highly recommend it
http://www.youtube.com/watch?v=Xo9bwQuYrRo
Hair cells are found in the inner and outer ear and help us convert mechanical signals to essentialy electrical signals(in a nutshell) for sound to reach the brain in the form of nerve impulses.
If you look closely that the hair cell actually dances in rhythm to the sound
http://www.youtube.com/watch?v=c91ub...eature=related
This is somethingdifferent but amazingnonethelss
http://www.youtube.com/watch?v=fkTXe...eature=related