The reading will star Ebony Marshall Oliver and SAG winner Alysia Reiner.
Ars Nova has cancelled remaining performances of the Lortel winner due to COVID.
The co-production from The Public and National Black Theatre began previews May 12.
The Shubert Foundation event, set for May 23 at Broadway's Winter Garden, will also feature Denée Benton, Jessica Hecht, Nathaniel Stampley, and more.
The Stephen Sondheim-James Goldman musical will begin performances June 30.
The New York theatre company's season includes three world premieres, an Off-Broadway premiere, and the launch of a new residency.
The 25th anniversary gala will honor Idris Goodwin, Emma Halpern, and Marietta Ries Lavicka.
The limited run based on the classic sitcom plays Off-Broadway's Theatre Row.
Find out when to see performances from Alvin Ailey, Jazz at Lincoln Center, and more.