The one-night-only event — Jan. 30 — at City Center in midtown Manhattan will benefit the not-for-profit Public, a downtown institution for 50 years. The concert will offer songs from Hair; A Chorus Line; Runaways; Bring in 'Da Noise, Bring in 'Da Funk; Caroline, or Change; and many others.

Also expected to appear, according to a Jan. 13 press release, are Zach Braff, Betty Buckley, Lea DeLaria, Savion Glover, John Goodman, Eartha Kitt, Donna McKechnie, National Dance Institute, Natalie Portman, Billy Porter, Ben Stiller, Mary Testa, Lillias White and Jeffrey Wright, among others.

David Binder produces.

Lapine is the Pulitzer Prize-winning and Tony Award-winning librettist whose directorial credits include The 25th Annual Putnam County Spelling Bee, Passion, Amour, Falsettos, Into the Woods, Sunday in the Park With George, Dirty Blonde and The Diary of Anne Frank and more.

Tickets range $20-$750. For information, call (877) 581-1212 (toll free) or (212) 581-1212 or visit www.publictheater.org.