(Westwood) -- At 12:45, and with a pre-arragned signal over the intercom, more than 500 kids of Midway School ran, screaming, through the halls to the gymnasium, where they took their places and waited for the music.

After just a week of practice, the K-8 students danced, more or less, in sync to a rendition of Kenny Loggins' "Footloose".  It was a celebration, marking the end of the 2011-12 school year.

Watch the video, but be prepared to turn down your speakers: