As royal wedding etiquette dictates, all ladies must wear a hat.
From Queen Elizabeth to Victoria Beckham, here are the best hats and fascinators at the royal wedding.
The Queen wore a neon yellow hat which also happens to be one of her signature colors.
Priyanka Chopra, one of Meghan's closest friends, opted for a custom Philip Treacy fascinator that matched her lavender suit perfectly.
Tennis star Serena Williams arrived in a tall rose-colored fascinator with her husband Alexis Ohanian.
Like most of the attendees, Amal Clooney coordinated her hat with her dress' color. The marigold Stella McCartney sheath dress perfectly matched the birdcage veil hat.
One of the first to arrive, Oprah turned heads with her bold Philip Treacy hat. She paired her Stella McCartney dress with a Gabriela Hearst bag.
The Spice Girl-turned-fashion designer chose a navy pillbox-like hat that was similar to the one she wore at Prince William and Kate Middleton's wedding back in 2011.
LADY KITTY SPENCER
Prince Harry's model cousin brought glamour with her eye-catching feathered hat.
Pippa Middleton stole the show yet again with her dusty rose fascinator. She was joined by her husband James Matthews. The two are rumored to be expecting their first child.
Carole Middleton coordinated her fascinator hat with a mint green Catherine Walker dress. The statement piece was accented by floral details.
Out of all the guests, the public had awaited Princess Eugenie’s choice of headwear the most, since she has worn the most outlandish hats in the past. For her cousin Prince Harry and Meghan’s wedding, however, she opted for a more understated look that disappointed much of everyone’s expectations.