After their marriage, Irene joined Vernon in The Hen-Pecks (1911), a production in which he was a featured player. The two then travelled together to Paris to perform in a dance revue. The show closed quickly, but the couple were hired as a dance act by the Café de Paris. Performing the latest American dances, the Castles were soon the rage of Parisian society. They introduced American ragtime dances, such as the Turkey Trot and the Grizzly Bear.