The Met Gala received the royal seal of approval this year.
Among the high-profile guests invited to the Karl Lagerfeld-themed event was Charlotte Casiraghi, the granddaughter of Grace Kelly, and a member of the Monégasque royal family.
Charlotte, 36, is a Chanel Ambassador, and she was close with Lagerfeld himself. The late designer was one of her mentors, and a longtime friend of her mother, Princess Caroline of Monaco.
Charlotte – Prince Albert’s niece – looked beautiful on the night, dressed in a black lace gown and with her hair swept up in a high bun.
It’s not the first time the stylish royal has attended the Met Gala – but this year there were rumours she would be joined by one of her counterparts.
It was widely speculated that Meghan Markle might make a surprise appearance at the fashion event.
Following her decision not to attend the King’s coronation on Saturday, her fans hoped to see her at the soiree in New York City.
But the Duchess was not on the notoriously exclusive guest list. Among those who did step out for the annual event included Rihanna, Jennifer Lopez, Penelope Cruz, Nicole Kidman, Naomi Campbell, Kate Moss and Margot Robbie.