Celebs like Megan Fox, Jennifer Lopez and Jennifer Hudson brought their A-game to the famous red carpet at the Metropolitan Museum of Art in New York City on Monday, while stars like Ciara, Ben Platt and Lupita Nyong’o truly embraced this year's theme, "In America: A Lexicon of Fashion," an exploration of the nation’s sartorial identity and a deep dive into American ingenuity.
Co-chair Billie Eilish looked like Old Hollywood royalty in a dramatic, pale pink Oscar de la Renta tulle gown with an extra-long train. The pop star spoke with ET's Rachel Smith on the Met steps, where she said she's channeling Marilyn Monroe "a little bit."
"It's like the most insane honor you would not believe. I feel like I'm in a dream. I feel like I'm tripping," Eilish said of co-chairing the evening.
And that aforementioned Ciara look? No less than a sequined football jersey-inspired gown with cut-outs at the hips. She rocked her husband, Russell Wilson's, No. 3 jersey number, and was sporting his Super Bowl ring! Ciara completed her look with an on-theme football-shaped clutch.
"Obviously, I'm repping my husband's jersey tonight," she told ET of her look. "This is the color inspiration."
These weren't the only stars who wowed on Monday night. Click through the gallery below to see every celeb who made the best-dressed list on fashion's biggest night.