The University of Minnesota Marching Band is known for its “Mound of Sound” formation in which the entire band, 300 players and instruments, squeezes into a mound a little more than 12 yards, or 11 meters wide, while still playing. That is real togetherness! In this video they start the formation almost 4 minutes in. The show is best watched at full screen.
Oh, and this is their fight song.