Meet the warm-up comics of Los Angeles who get the crowds roaring before the cameras start to roll!  Nationally touring comics Gary Cannon, Eric Wielo, and Billy Griffin travel to Milwaukee to present: “The Warm Ups-Show”: A two-night-only special event at The Underground Collaborative, Friday May 31st-June 1st. With years of experience warming up the live studio audiences for such shows as “CONAN”, “Chelsea Lately” “America’s Funniest Home Videos”, “Craig Ferguson”, “Dancing with The Stars”, “The Bachelor”, Bob Saget’s “Video’s…