Sure, the wedding’s A-list crowd ( Amal! Serena! Oprah! ) are no strangers to serving up red carpet looks, but leave it to the royal family to give a master class in fascinators and day dresses. The royal family must follow strict rules for just about every facet of their lives, from what they eat, to when they stand, to, yes, what they wear for formal events. For example, they need to wear dresses that cover their shoulders and are knee-length or longer. Royals are required to accessorise their wedding looks with a hat and neutral nails , and when it comes to their footwear, wedges are out of the question. So while they won’t be sporting anything trendy, they flex their fashion muscles by experimenting with colour, silhouettes, and standout hats.