How many skinheads does it take to start a full-fledged riot? Let's hope we don't find out at the Oi-intensive Midwest United Memorial Day Riot. Featuring the classic bruising beats and combative calls of the Templars, the Riot promises to be one hellacious show. The street-punk attitude of Adolf and the Piss Artists, plus seven other Midwest bands, will intensify the mayhem. But throw in local acts like the Business-esque Southpaw Manners and the Hail Marys, and St. Louis has itself a show that not a single recently shaven head within 200 miles would dare to miss.