The event welcomed Courtney Love, Frank Langella, Gay Talese, Barbara Walters, and more to the Delacorte Theater.
John Lithgow, Jonathan Groff, and others will join to make One Thrilling Combination in honor of the late Marvin Hamlisch.
Andy Kelso, Tony winner Billy Porter, and the cast celebrate backstage with cake.
Primary Stages has also announced casting for Theresa Rebeck's new comedy Poor Behavior.
Behind-the-scenes gems with winners James Monroe Iglehart, Jessie Mueller, and Lena Hall also make the cut.
A roundup of photos from some of the hottest events around New York City.
Billy's Back on Broadway was released today.