The Costume and Riflemen's Procession takes place on the first Sunday of the festival, in which some 7000 performers -- groups in traditional costumes and historical uniforms, marching bands, riflemen, thoroughbred horses and other livestock, old-fashioned carriages, and numerous floats -- parade through the streets of Munich's city center showcasing the diversity of local, regional, and national customs. The second Sunday of the Oktoberfest features an open-air big band concert involving the 400 or so musicians who comprise all of the Oktoberfest bands.