I really enjoyed this! What a great example of an old school marching band, and a pop culture phenomenon captured in 1983! I bet that at least ONE of the three guys were drummers.
(Yinz' know I marched drum corps, and taught many high school marching bands).
I tried to find out where this school is from by looking at other YouTube videos, and watched a performance of theirs from 2008. They played a stock arrangement of 'In The Stone' that came out in probably 1980! I quit watching when the pom-pom chicks came out....