Keira Knightley Wore Princess Diana's Signature Outfit to Buckingham Palace

It's not every day you get invited to Buckingham Palace—so what does one wear? Well, if you're Keira Knightley, you wisely choose a prim Chanel Haute Couture skirt suit and Chloe Gosselin heels. Knightley's outfit reminded us of Princess Diana's signature skirt suits, which the style icon owned in a slew of variations. Knightley could certainly pass as a royal in this perfect outfit, no? 

Knightley was invited to the palace to receive an OBE award, making her an Officer of the Most Excellent Order of the British Empire. "The Prince of Wales presents Keira Knightley with her #OBE for services to Drama and Charity today," the royal family captioned on Instagram. "Keira's acting career has spun almost two decades, and she has worked with and supported charities including Water Aid and Oxfam."

Scroll down to see her royal-inspired outfit and shop skirt suits for yourself.