The A-list guests have arrived at the royal wedding, though the real stars of the event -- the royal family -- are still standing by. What do celebs wear to a royal wedding? Follow the jump to see all the white carpet fashion...

Chelsy Davy, Prince Harry's girlfriend, wore an aquamarine off-the-shoulder frock by Alberta Ferretti.

Bella Musgrave, Prince William's ex, wore a bold red number designed by Gucci.

David and Victoria Beckham arrived to huge cheers, probably because David looks amazing in his Armani. Posh is dressed in a maternity gown she designed herself and a Phillip Treacy hat.
 

Elton John is bright and colorful in his black suit, yellow vest and purple tie.