Who run the world? The Plastics. The always entertaining Unauthorized Musical Parody Of (UMPO for short) series is back at Los Feliz’s Rockwell Table & Stage with their take on Mean Gurlz—spelled just like that, which the creative team jokes, or maybe it’s not entirely a joke, is to prevent a cease and desist order. Created … More Theater Review: The Unauthorized Musical Parody of Mean Gurlz at Rockwell Table & Stage