Princess Diana tore out the corset in her gown for her only Met Gala appearance. It was the ultimate 'revenge' dress.

Source: Business Insider

Princess Diana attended her first and only Met Gala in December 1996. Richard Corkery/NY Daily News via Getty ImagesPrincess Diana made her only Met Gala appearance in 1996, shortly after divorcing then-Prince Charles. She wore a lingerie-inspired silk dress designed by John Galliano.