Last summer on an episode of America's Got Talent, St. Louis entertainer Clownvis had his act discontinued after less than 30 seconds. He insulted Piers Morgan. ("Who are you?" he asked Morgan.) He let Howie Mandel know that he didn't think Mandel had made a decent movie since 1989's Little Monsters. And Sharon Osbourne told him to "fuck off." It was a pretty bold four minutes of network TV, and his message was clear: He is the King of Clowns. See him at Press at Crosstown Station (1522 McGee, 816-471-1522) when the Kansas City Burlesque Symposium presents a Showcase. Voler–Thieves of Flight performs, along with local burlesque staples, including Annie Cherry. Tickets cost $10 for the 21-and-older show. Doors open at 8:30 p.m.