Among those performing their favorite holiday tunes are Mary Testa, Amy Dolan, Janine DiVita, Jason Tam, Walter Willison, Sara Hiance and Katie Schorr with a special performance by 2012 David di Donatello Award-winning artist Michael Brunnock.

Joe Iconis directs the house band: Eric William Morris, Jason "SweetTooth" Williams, Jeremy Morse and Ian Kagey.

Attendees will have an opportunity to chat with the stars before the show at a cocktail hour meet and greet. The cocktail hour begins at 6:30 PM followed by the 7:30 PM performance.

Tickets are $50. All proceeds benefit the Huntington's Disease Society of America's Greater New York Chapter.

Playwrights Horizons is located at 416 W. 42nd Street (at 9th Ave.) in Manhattan. For ticket information, e-mail Sarah Katerle (skaterle@hdsa.org), call (585) 643-5239, or visit hdsa.org/gny.

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Huntington’s Disease is a "devastating, hereditary, degenerative brain disorder for which there is, at present, no effective treatment or cure." For additional information, visit www.hdsa.org or call (800) 345-HDSA.