Chicago Turns 21! Check Out These Photos from the Swanky Celebration

It's been 21 years of hotcha, whoopee and all that jazz on Broadway! The Tony-winning revival of Chicago celebrated its 21st birthday on December 5 at New York's PHD Terrace. Current stars Leigh Zimmerman, Charlotte d'Amboise and more of the Chicago family gathered together for a slice of cake. Check out the pics, and then catch the sizzling musical live at the Ambassador Theatre!