Ziegfeld girls were the actresses, singers, chorus girls, showgirls and other female performers who appeared in Florenz Ziegfeld's theatrical Broadway revue spectaculars known as the Ziegfeld Follies, produced in New York City. The revues were originally based on the Folies Bergère of Paris. Ziegfeld girls also included female performers who participated in the Ziegfeld Midnight Frolic and the Ziegfeld 9 O'Clock Revue (1919-1920).