The 2026 Met Gala wasn't just fashion's biggest night - it also marked a debut for several celebrities from actor Connor Storrie to musician Sombr to Beyoncé and Jay-Z's daughter Blue Ivy Carter. Stars gathered on the Metropolitan Museum of Art steps in New York City on Monday, May 4, to celebrate the "Costume Art" theme in style. But while some attendees, including the Kardashian-Jenners and Blake Lively were already Met Gala pros, others got to make their stylish debut at the event. Nicole Kidman and Beyoncé both got to bring their daughters despite the 18-or-older policy at the Met Gala.