On Oct. 13 Quest will become the latest actor to bare all in the long-running revue, which currently plays New World Stages, Stage 4. Naked Boys Singing!'s original 16-song score includes such numbers as "Fight the Urge," "The Bliss of a Bris," "Muscle Addiction," "Nothing But the Radio On," "Members Only" and "Window to Window." The musical comedy revue opened in New York July 22, 1999, after a successful run at the Celebration Theatre in Los Angeles. The show's contributing writers include Stephen Bates, Marie Cain, Shelly Markham, Jim Morgan, David Pevsner, Rayme Sciaroni, Mark Savage, Ben Schaechter, Robert Schrock, Mark Winkler and Bruce Vilanch.

Schrock directs with choreography by Jeffry Denman.

Spencer Quest has starred in the adult films "110 Degrees In Tucson," "Horse: Fallen Angel V," "Manplay 18," "SpyQuest," "Alabama Takedown," "Cirque Noir" and "SpyQuest2." He will soon be seen in "La Dolce Vita" and is also at work on "Three Brothers," which casts him as "one of three 'aging' adult film stars who come out of retirement to do commentary for - and recreate a famous scene from their classic 1982 movie - for its 25th anniversary re-release." Prior to his adult film career Quest spent four years teaching high school in the Pittsburgh area.

Naked Boys Singing! offers three performances a week: Fridays at 10:30 PM and Saturdays at 6 and 10:30 PM. Running time is an intermissionless 70 minutes.

New World Stages/Stage 4 is located at 340 West 50th Street. Tickets, priced $69, are available by calling (212) 239-6200.