They came from L.A. and have spent 1000 and 1001 nights singing and dancing in the buff. Naked Boys Singing!, the all-male song-and dance revue at Off-Broadway's Actor's Playhouse, marks its millennial performance the matinee of Dec. 1, joining such shows as Nunsense, Forbidden Broadway and Little Shop of Horrors.

Naked Boys Singing! is a sometimes comic, sometimes serious, all singing, all-dancing revue of tunes celebrating mankind sans clothing. The 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 revue's contributing writers are Stephen Bates, Marie Cain, Shelly Markham, Jim Morgan, David Pevsner, Rayme Sciaroni, Mark Savage, Ben Schaechter, Robert Schrock, Mark Winkler and Bruce Vilanch. Schrock directed with choreography by Jeffry Denman (The Producers) and musical direction by Stephen Bates.

Tickets are $50-$35 or $70 for the first two rows. The Actors' Playhouse is located at 100 Seventh Avenue South below Christopher Street. Call (212) 463-0060 for information.

— By Christine Ehren