Bowlers and bonnets and fascinators, oh my!
If you're headed to the royal wedding know this: Naked noggins are a no-no.
Hat's off on to Philip Treacy who designed royal wedding headwear for David and Victoria Beckham, Tara Palmer-Tomkinson, Princesses Beatrice and Eugenie of York and Zara Phillips, just to name a few.
Forget who wants to be a millionaire, who wants to be a milliner?!
PHOTOS: Royal Wedding, VIP Arrivals