Mam'zelle Champagne was a musical revue set in Paris with book by Edgar Allan Woolf, music by Cassius Freeborn, produced by Henry Pincus, which opened June 25, 1906. On opening night at the outdoor Madison Square Garden Roof Theatre, millionaire playboy Harry K. Thaw shot and killed architect Stanford White: the otherwise undistinguished musical's run continued for some 60 performances[1] largely on the publicity from this incident.