Newcomers to the one-night-only event include Beauty and the Beast's Jamie-Lynn Sigler, Legally Blonde's Kate Shindle, Xanadu's Curtis Holbrook and Les Misérables' Ann Harada. The foursome join the previously announced Ashley Parker Angel, Aaron Albano, Stanley Bahorek, Brad Bass, Lance Bass, Kathy Deitch, Jared Gertner, Van Hughes, Chris Jackson, Kasey Marino, Julia Murney, Danny Calvert, Steve Morgan, Maurice Murphy, Jesse Nager, Josh Strickland, Daniel Torres, Marty Thomas, Tony Vincent and Amy Wren.

Presented and directed by Jamie McGonnigal, the 11:30 PM performance will feature music direction by Ben Cohn. Mo Rocca will host.

Proceeds from the forthcoming concert will benefit the Joey DiPaolo AIDS Foundation and Camp TLC, a summer camp for inner-city teens living with HIV/AIDS. Visit www.jdaf.org for more information.

Joe's Pub is located within the Public Theater at 425 Lafayette Street. Tickets, priced $25, are available by calling (212) 239-6200 or by visiting www.telecharge.com.