Forbidden Broadway is an Off-Broadway revue parodying musical theatre, particularly Broadway musicals. It was conceived, written and directed by Gerard Alessandrini. The original version of the revue opened on January 15, 1982 at Palsson's Supper Club in New York City and ran for 2,332 performances. Alessandrini has rewritten the show over a dozen times over the years to include parodies of newer shows. In the original iteration of the show, Alessandrini was one of the original actors. Michael Chapman directed and produced. In April 1982, Chloe Webb joined the cast, and Jeff Martin succeeded Chapman as director. Alessandrini assumed the directing position subsequently, with Phillip George, Alessandrini's long-time collaborator, co-directing all of the editions of the revue since 2004.
The show, in its various editions, has received over 9,000 performances and been seen in more than 200 U.S. cities as well as playing in London, Tokyo, Singapore and Sydney.