Britain's Prince William kisses his wife Kate, Duchess of Cambridge on the balcony of Buckingham Palace after the Royal Wedding in London, April, 29, 2011. (Matt Dunham/AP Photo)
Prince William and Kate Middleton exchanged their vows before Archbishop of Canterbury, Rowan Williams at Westminster Abbey on Friday (April 29) in London, England. The couple was pronounced husband and wife as 1 million people packed the streets and an estimated 2 billion more watched across the globe.
Britain's Prince William, left, and his wife Kate, Duchess of Cambridge, followed by Britain's Prince Harry and Maid of Honour Phillipa Middleton, leave Westminster Abbey in London, after their wedding ceremony, April 29, 2011. (Kirsty Wigglesworth/AFP/Getty Images)
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Prince William waves as he arrives with Prince Harry to Westminster Abbey, April 29, 2011 in London, England. William, 28, is wearing the red uniform of colonel of the Irish Guards. Its features include a gold and crimson sash for his nuptials with Kate Middleton. (Pascal Le Segretain/Getty Images)
Kate Middleton arrives at the West Door of Westminster Abbey in London for her wedding to Britain's Prince William, April 29, 2011. (Odd Andersen/AFP/Getty Images)