John Sigvard "Ole" Olsen and Harold Ogden "Chic" Johnson were American comedians of vaudeville, radio, the Broadway stage, motion pictures and television. Their shows were noted for their crazy blackout gags and orchestrated mayhem ("anything can happen, and it probably will"). Their most famous concept, Hellzapoppin', has become show-business shorthand for freewheeling, anything-goes comedy; it enjoyed a lengthy run on Broadway and spawned a movie version.