Hibbert (Curtains/The Drowsy Chaperone) will host the event as "Man in Chair" from The Drowsy Chaperone. Hibbert replaces the previously announced David Garrison.

In addition to Brown (Mary Poppins), Umoh (Ragtime) and Stanek (Freud's Last Session), the 7 PM concert will feature Wicked composer-lyricist Stephen Schwartz, Tony Award nominee Christopher Sieber (Shrek the Musical), Telly Leung (Godspell, "Glee"), Ciara Renée (Big Fish), Sarah Stiles (Into the Woods), Alison Cimmet (The Mystery of Edwin Drood), Constantine Germanacos (Evita), Sydney James Harcourt, Kelly McCormick, Sean Krill (On a Clear Day…), Leah Horowitz (Follies), Tony winners Beth Leavel (The Drowsy Chaperone) and Lillias White (The Life), Patti Murin (Lysistrata Jones), Sierra Boggess (The Little Mermaid), Tony nominees Kerry Butler (Xanadu), Dee Hoty (Footloose) and Susan Egan (Beauty and the Beast) and Grammy winner Amanda McBroom.

The evening will feature a special version of "Show Off" from Drowsy Chaperone, with new lyrics by Tony Award winner Lisa Lambert written specially for this event.

The concert will be directed by Tony winner David Zippel with continuity by Brian Hargrove, music direction by Brad Haak and choreography by Lorin Latarro. Ryan Fielding Garrett is assistant music director, and Branden Huldeen (NAMT's New Works director) is the creative producer.

Special guests at the evening — a conclusion to this year's annual Festival of New Musicals, which takes place Oct. 17-18 at New World Stages — will include Danish musical theatre stars Bjørg Gamst and Maria Skuladottir. New York University's Skirball Center for the Performing Arts is located 566 LaGuardia Place at Washington Square. For more information and tickets, visit NAMT.org/ShowOff.