Liza! at 80: A Celebration in Song and Dance will be written by Minnelli and Hannah Oren.
The Tony winner returned to 54 Below earlier this month.
Rob Ashford will direct the immersive Off-Broadway production of Jay Presson Allen's play.
Written by Slater and Marshall Pailet, the Classic Stage Company production sees the Wicked film star taking on world-famous mime Marcel Marceau.
Usdan alums love the camp so much they come back to write original musicals.
The rarely produced musical version of Blithe Spirit continues at the Manhattan venue through February 15.
The Tony-winning Disney favorite has surpassed 11,100 performances in New York.
With a score of Foreigner hits and a book by Stephen Garvey, the musical will play the Little Theatre on Long Island University’s Brookville campus.
The cast recording of the Tom Kitt-Brian Yorkey musical is currently available for streaming and digital download.