Hosted by Glee's Jane Lynch, the benefit concert served to support the UN's Free & Equal campaign.
The Broadway composer will star in the title role opposite Kristin Chenoweth at Avery Fisher Hall.
The evening will celebrate the work of playwright/director Moss Hart.
Lonny Price will direct the concert staging at Broadway's Bernard Jacobs Theatre.
One Starry Night will be held at the Pasadena Playhouse.
The family concert and benefit, cohosted by Tony nominee Tony Roberts, will mark the debut of James Judd as the orchestra's musical director.
Buyer & Cellar playwright Jonathan Tolins is scripting this special evening honoring Fiddler on the Roof lyricist Sheldon Harnick and the larger Broadway community for its role in advancing tolerance.
The cast features David Hyde Pierce, Julia Murney, and more.
Paralyzed since age two, this bubbly blonde actress is wheeling her way into a busy career on stage and screen while also finding time to give back. She appears in the Fourth Annual Born for Broadway gala at 54 Below on September 30.