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An updated list of participating artists has been announced for The 24 Hour Musicals, to take place at 8pm on Monday, April 13 at the Gramercy Theatre.

Participants will include Roger Bart, Dr. Joy Browne, Trip Cullman, Rachel Dratch, Jesse Tyler Ferguson,Gina Gionfriddo, Rinne Groff, Robin Goldwasser, Mandy Gonzalez, Julia Greenberg, Cady Huffman, Cheyenne Jackson, Capathia Jenkins, Richard Kind, Gabriel Kahane, Nellie McKay, Idina Menzel, Bebe Neuwirth, Benj Pasek, Justin Paul, Mo Rocca, Marnie Schulenberg, Jonathan Marc Sherman, Ted Sperling, Scarlett Strallen, Tracie Thoms, Tamara Tunie, and Alicia Witt.

As the title implies, the entire creative process (including writing, composing, and rehearsing) will take place within a 24 hour period, resulting in four new musicals to be performed -- without scripts in hand -- for a live audience.

Tickets are currently on sale by visiting www.exchangenyc.org/24.