The Met Gala returns tonight to New York City’s Metropolitan Museum of Art, with celebrities vying to make headlines and push the boundaries of this year’s “Costume Art” theme. BeyoncĂ© makes her first Met Gala appearance in a decade as co-chair, while the iconic event marks the first since Anna Wintour stepped back as U.S. Vogue editor-in-chief, though she remains a key organizer.