Naturally, the major accomplishment called for celebration, and Rumer's A-list fam was on hand to congratulate the starlet's successful start.
Friendly exes Bruce Willis and Demi Moore reunited for their eldest daughter's special evening, as did Bruce's wife, Emma Heming. Scout, 24, and Tallulah, 21, completed the Willis sister act, looking chic in their own unique ensembles outside the New York City theater.