Nov. 6, 2014 - Last week a group of 50 dancers surprised University of Delaware students on The Green with a seemingly spontaneous performance to Michael Jackson’s Thriller in full zombie regalia. Hundreds students and other members of the UD community stopped to watch the zombies perform Jackson’s famous dance. Michael Shay, professor of physics and astronomy, was on The Green at the time of the flash mob. “It was very creative,” said Shay. “It was entertaining to watch all those people dancing to a song from my high school days.