Kate Middleton's royal wedding gown looked nothing short of spectacular as she walked down the aisle at Westminster Abbey this morning.

The Duchess of Cambridge chose to wear a classy, yet sexy Alexander McQueen wedding dress. Stunning!

Vogue Contributing Editor Sarah Mower said the following about how the designer's name was kept under wraps:

    “Catherine Middleton and Sarah Burton have successfully kept the best-guarded secret in fashion history. The incredibly moving moment when the new Duchess of Cambridge stepped out of her car in an Alexander McQueen dress was the fantasy everyone in fashion has been dreaming would come true.”

See more photos of the Royal Wedding, including David and Victoria Beckham's arrival, in our gallery below.