Instagram/Nicole Kidman & Beyonce & Celebrity Nicole Kidman's daughter, Sunday Rose, 17, defied the Met Gala's strict 18+ age rule at her debut alongside her mother. May 5, 2026 AceShowbiz - Nicole Kidman's daughter, Sunday Rose, made a striking entrance at the 2026 Met Gala, defying one of the event's most stringent rules. At just 17 years old, Sunday Rose attended the prestigious event alongside her mother, who was one of the co-chairs for the evening.