Actresses and models aren't the only fashionable guests who attend the Met Gala. Even royals like Princess Beatrice and Queen Rania of Jordan have made appearances at fashion's biggest night over the years. From Princess Diana's Versace slip dress at the 1995 event to Princess Maria-Olympia's head-turning Balmain minidress in 2016, these red carpet looks are truly unforgettable. Take a look back at the most memorable moments ahead.
Wearing an embellished black number.
Wearing a periwinkle gown and carrying a Chanel clutch.
Tatiana Santo Domingo wearing a beige dress.
Wearing a navy and black belted gown.
Wearing Valentino.
Wearing Balmain.
Wearing Mary Katrantzou.
Wearing a purple Alberta Ferretti gown.
Wearing Saint Laurent.