Composer-lyricist Alan will be part of the evening, which is to feature songs from his musicals Piece and Detour. Aida's Schele Williams will direct the one-night-only event, which will also boast performances by Aida's Lisa Brescia, Hairspray's John Hill and singer-actress Lauren Thomas. Jesse Vargas is the musical director and arranger; show time is 7 PM. Shoshana Bean played Shelley in the original cast of the Tony winning musical Hairspray. Originally from Portland, Oregon, Bean attended the University of Cincinnati College Conservatory of Music before heading to NYC. She was first cast in the Off Broadway production of Godspell and then in the national tour of Leader of the Pack. Bean was also recently seen in the all-star Hair benefit concert. The singer-actress is currently working on her debut solo album for Pure Records. Bean begins her run as Elphaba in Stephen Schwartz's Wicked Jan. 11.

The Duplex is located in Manhattan at 61 Christopher Street. There is a $20 cover charge; call (212) 255-5438 for reservations. Visit www.scottalan.net for more information.