November 14 marks 20 years of hotcha, whoopee and jazz on the Great White Way. Chicago's anniversary celebration drew a crowd of both original and current cast members and the Tony-winning revival's die-hard fans. Those in attendance included Tony winner Bebe Neuwirth, Tony-winning director Walter Bobbie, legendary composer John Kander, script adapter David Thompson, original music director Rob Fisher and original cast members Ann Reinking, David Sabella, Michael Berresse, Jim Borstelmann and Mamie Duncan-Gibbs. Other notable alumni cast members also stepped out for the anniversary, including Charlotte d’Amboise, Christopher McDonald, Paul Nolan, Ron Orbach, Vincent Pastore, Christine Pedi, Ernie Sabella, Christopher Sieber, Ryan Silverman, Lavon Fisher Wilson, Carol Woods, Tom Wopat and Amra‐Faye Wright. Both previous and current cast members snapped an epic family photo in front of the Ambassador Theatre, where Kander and Ebb's iconic tuner is still bringing razzle dazzle to the Great White Way. Check out the hot shot above, and happy anniversary, Chicago!