Some of the onlookers were quite surprised to see their afternoon of wandering throughout the open space riding bikes, flying kites and picnicking interrupted by a (literal) band of teenagers and college-aged kids with odd tan lines marching through their midst. Some stopped to watch, others kept going about their lives unconcerned with the flags being tossed and spun around them and the loud strains of “Johnny One Note” and “Sing, Sing, Sing” belting away in the distance.