Alexei Ratmansky's reconstruction of Marius Petipa's Harlequinade, which debuted this spring at American Ballet Theatre, felt as fizzy and decadent as a glass of champagne. Though resplendently designed and lovingly assembled, the ballet relied on the personal charms of its Harlequin and Columbine to buoy its all-too-poppable bubble of a plot. And nobody brought more charm, or technical brilliance, to the leading roles than the opening-night cast, James Whiteside and Isabella Boylston. The charismatic duo perfectly understood the lightweight fun of the ballet, relishing the beauties of its coloratura choreography while keeping the extended mime passages just to the right side of camp. Their offstage best-friendship—they're known to their Instagram fans (including Jennifer Garner) as "the Cindies"—lent a special warmth to their onstage partnership, especially in the ballet's surprisingly tender climactic pas de deux. Audiences floated out of the theater afterward, pleasantly intoxicated.