Though no dates have ben set as of yet, the singer-actress is expected to begin in February. Heather Laws, who currently plays the lead role, is scheduled to end Feb. 9.

After rising to fame in the '80s as a pop singer (then as Debbie) — with songs like "Electric Youth," "Only In My Dreams" and "Lost in Your Eyes," — Gibson turned to musical theatre landing roles in the Broadway productions of Les Miz, Grease! and Beauty and the Beast. Her other stage creds include the national tours of Joseph and the Amazing Technicolor Dreamcoat, Funny Girl and Cinderella. Gibson recently appeared as Gypsy Rose Lee opposite Betty Buckley in the Paper Mill production of Gypsy and in another John Kander and Fred Ebb musical Chicago at North Shore Music Theatre in Beverly, MA.

Gibson joins a long line of Sally replacements which include Jennifer Jason Leigh, Mary McCormack, Susan Egan, Joely Fisher, Lea Thompson, Katie Finneran, Gina Gershon, Kate Shindle, Brooke Shields, Jane Leeves and Molly Ringwald. The role was originated in this Broadway run by Natasha Richardson.

Neil Patrick Harris (Proof) currently stars as the Emcee, Tom Bosley ("Happy Days") as Herr Schultz and Carole Shelley as Fraulein Schneider (through Feb. 16.)

The Roundabout Theatre Company production of Cabaret is lodged at Studio 54. Also in the current cast also are Rick Holmes as Clifford Bradshaw, Candy Buckley as Fraulein Kost and Peter Benson as Ernst Ludwig. Harris may find himself at Studio 54 again later in 2003. Cabaret will play one more year at the space and then close to make way for Assassins, Roundabout Theatre Company artistic director Todd Haimes has said. Harris was cast in the Sondheim revival when the mounting was postponed in the days following Sept. 11, 2001. Harris' spokesperson said, "He's still attached to the project. The earliest it would happen is fall 2003."

The Sam Mendes/Rob Marshall-helmed Broadway revival of the musical plays at Studio 54, 254 West 54th Street. For tickets, call (212) 239-6200.