The Met Gala red carpet wasn't always the spectacle fashion fans have come to know, but in 1996, Princess Diana certainly made a statement as she made her one and only appearance at the costume benefit. However, a new story about her Dior slip dress has come to light nearly 30 years later—and it proves Diana made her own rules when it came to fashion.
In the new Hulu documentary, In Vogue: The '90s, former Dior creative director John Galliano revealed how the princess took him by surprise at the event by switching up his design.
