The prom post arrived at a meaningful moment for the Kidman-Urban family. Nicole Kidman recently revealed that Sunday will be joining her at the 2026 Met Gala on May 4, making it an official mother-daughter debut on one of fashion’s biggest nights.

“I’m so, so happy, and my daughter Sunday will be coming,” the “Moulin Rouge” actress said on the March 11 episode of the “Las Culturistas” podcast, noting it would be her third time co-chairing the event. She shares Sunday and her younger sister, Faith Margaret Kidman Urban, 15, with Keith.
With a $12,900 prom dress and a Met Gala invitation already on her spring calendar, Sunday Rose is having quite the season.