Broadway Cares/Equity Fights AIDS' annual benefit rose over $4 million for the charity.
She'll take over the role of "Madame."
James Lapine's adaptation of Hart's acclaimed memoir will play Lincoln Center Theater.
The family concert and benefit, cohosted by Tony nominee Tony Roberts, will mark the debut of James Judd as the orchestra's musical director.
A glittery performance from the Tony-winning Best Musical will be featured on the telecast.
The actor was currently on a 12-week medical leave after hurting his shoulder in rehearsal.
The production is slated to become the fourth-longest-running show on Broadway.
BCT Artistic Director Burgess Clark will offer local Boston students a theatrical master class.
The lineup includes a variety of shows geared toward kids and adults.