Check out photos of the Broadway veterans in performance at swanky nightclub 54 Below.
The elder Callaway sister is flying solo and bearing her soul in the process.
The Tony-winning songwriters are set to receive the Oscar Hammerstein Award for Lifetime Achievement.
The Callaway sisters are back and better than ever.
Liz Callaway, Christina Bianco, and Ann Harada are also scheduled to perform.
Previously announced participants include Broadway veterans Sierra Boggess, Liz Callaway, and Beth Fowler.
The annual gala will take place on Monday, Dec. 9.
With performances by Minnelli, Nick Adams, Norm Lewis, and more, fun was had by all.
The songwriting power couple launched their 54 Below cabaret series with some of their closest Broadway pals.