Princess Beatrice of York arrives at Westminster Abbey in an eye-catching pink headpiece.
Victoria Beckham arrives at the church in a modern take on the traditional pillbox hat. Designed by Philip Treacy, the embellished headpiece helped Beckham achieve her signature unique look.
Queen Sofia of Spain and Princess Letizia of Spain arrive at the wedding in traditional elegant headwear.
Princess Eugenie of York, left, sports an aqua-blue feathered headpiece
Zara Phillips, granddaughter of Queen Elizabeth II, wears a big-brimmed hat with a black bow
Denmark's Queen Margrethe arrives at Westminster in a bright blue matching hat and dress
Camilla, Duchess of Cornwall, attends the ceremony in a big-brimmed cream hat designed by Phillip Treacy
Queen Elizabeth II is seen wearing a pale yellow traditional top hat
Miriam Gonzalez Duantez, wife of Deputy Prime Minister Nick Clegg, arrives in a bright red flowered headpiece, giving a pop of color to her elegant black and white dress.
Guests wait for Kate Middleton to arrive at Westminster Abbey
Fashionistas, take note. From flamboyant feathered headpieces to traditional colored top hats, the women at Britain's royal wedding paraded some of the year's most creative headwear.