Sabrina Carpenter only has three Met Gala red carpets under her belt, but she's already been crowned a member of the Host Committee. The pop star—as well as Teyana Taylor , Doja Cat , and more—supported 2026 Met Gala co-hosts like Beyoncé for this year's event. But first, Carpenter flaunted her own Dior dress on the Met Gala red carpet. Tonight's theme, "Costume Art," was practically made for Carpenter. "The idea was to put the body back into discussions about art and fashion," Costume Institute curator Andrew Bolton told Vogue last November. It's no surprise Carpenter shined during her step-and-repeat: She adores showing some skin, which was basically required for VIPs to be on theme this year. Stylist Jared Ellner teamed up with Jonathan Anderson's Dior, the same creative director behind her viral Coachella outfits . Carpenter picked up where Coachella's Sabrinawood theme left off in a slitted halter-neck dress sculpted entirely from authentic film.…