Mary McCormack and Boyd Gaines are the new strange duet of sleazy nightclub singer Sally Bowles and buttoned-down Cliff Bradshaw in the Roundabout Theatre's revival of Cabaret beginning March 2 at Studio 54.

McCormack, who appeared in Howard Stern's "Private Parts," and Gaines, who played Bobby in the Roundabout's Company, replace Jennifer Jason Leigh and John Benjamin Hickey, who played their final performances Feb. 28.

The hit London-originated revival of the 1966 John Kander-Fred Ebb musical is based on Christopher Isherwood1s "Berlin Stories" and John Van Druten's play about the tales, I Am a Camera.

Holdovers are Blair Brown (Frau Schneider) and original cast members Alan Cumming (as the Emcee), Denis O'Hare (Ernst), Michele Pawk (Kost) and Ron Rifkin (Herr Schultz). Cumming and Rifkin won Tony Awards for their performances.

For tickets and information on Cabaret at Studio 54 call (212) 239 6200.