ALTERNATIVE CROP Britain's Prince William (L) looks at his bride Kate Middleton during the Royal wedding ceremony at Westminster Abbey in London on April 29, 2011. AFP PHOTO / WPA POOL / Dominic Lipinski (Photo credit should read Dominic Lipinski/AFP/Getty Images)

Maid of honour Pippa Middleton arrives with ring bearers Westminster Abbey at the Royal Wedding in London Friday, April 29, 2011. (AP Photo/Alastair Grant)

Kate Middleton arrives with her sister, Maid of Honour Philippa Middleton at the West Door of Westminster Abbey in London for her wedding to Britain's Prince William, on April 29, 2011. AFP PHOTO / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)

Britain's Prince William, left, and his best man Britain's Prince Harry arrive at Westminster Abbey at the Royal Wedding in London Friday, April, 29, 2011. (AP Photo/Gero Breloer)

Britain's Prince William, left, and his best man Britain's Prince Harry arrive at Westminster Abbey at the Royal Wedding in London Friday, April, 29, 2011. (AP Photo/Alastair Grant)

Britain's Prince Charles, arrives at a central London hotel for a pre-royal wedding dinner hosted by Lady Elizabeth Anson and attended by members of the British royal family and foreign royal families, in London, Thursday, April, 28, 2011. The dinner is on the eve of the royal wedding of Britain's Prince William and Kate Middleton at Westminster Abbey. (AP Photo/Alastair Grant)

Britain's Prince Charles (R) and Camilla, Duchess of Cornwall arrive at the Mandarin Oriental hotel for a gala dinner hosted by Britain's Queen Elizabeth II in London on April 28, 2011 on the eve of the Royal wedding. Britain's Prince William is to marry his fiancee Kate Middleton at Westminster Abbey in London on April 29, 2011. AFP PHOTO/GLYN KIRK (Photo credit should read GLYN KIRK/AFP/Getty Images)

Maid of honour Pippa Middleton arrives with page boys and ring bearers at Westminster Abbey at the Royal Wedding for Britain's Prince William and Kate Middleton in London Friday, April, 29, 2011. (AP Photo/Martin Meissner)

Kate Middleton waves as she arrives at Westminster Abbey at the Royal Wedding with Britain's Prince William in London Friday, April, 29, 2011. (AP Photo/Martin Meissner)

Kate Middleton arrives for her wedding with Britain's Prince William at Westminster Abbey at the Royal Wedding in London Friday, April 29, 2011. (AP Photo/Gero Breloer)

Kate Middleton arrives at Westminster Abbey at the Royal Wedding with Britain's Prince William in London Friday, April, 29, 2011. (AP Photo/Martin Meissner)

Kate Middleton arrives with her father Michael Middleton (C) and her sister Philippa Middleton at the West Door of Westminster Abbey in London for her wedding to Britain's Prince William, on April 29, 2011. AFP PHOTO / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)

Kate Middleton waves as she arrives with her father Michael Middleton and her sister Philippa Middleton to the West Door of Westminster Abbey in London for her wedding to Britain's Prince William, on April 29, 2011. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images)

Prince William awaits the arrival of his bride Kate Middleton at Westminster Abbey on April 29, 2011 in London, where Prince William and Kate Middleton will marry today. AFP PHOTO/ POOL/ DOMINIC LIPINSKI (Photo credit should read Dominic Lipinski/AFP/Getty Images)

Britain's Prince William is on his way to Westminster Abbey at the Royal Wedding in London Friday, April, 29, 2011. (AP Photo/Alastair Grant)

Britain's Prince William,center, and his brother and best man Prince Harry, right, arrive at Westminster Abbey for Prince William's marriage to Kate Middleton, in central London April 29, 2011. (AP Photo/Suzanne Plunkett/Pool)

Britain's Prince Charles travels to Westminster Abbey in London for the wedding of Britain's Prince William and Kate Middleton, on April 29, 2011. AFP PHOTO / MARTIN BUREAU (Photo credit should read MARTIN BUREAU/AFP/Getty Images)

In this image taken from video, From left, Britain's Prince Philip, Britain's Prince Charles, and Camilla, Duchess of Cornwall, sing during the ceremony at Westminster Abbey for the Royal Wedding in London on Friday, April, 29, 2011. (AP Photo/APTN) EDITORIAL USE ONLY NO ARCHIVE PHOTO TO BE USED SOLELY TO ILLUSTRATE NEWS REPORTING OR COMMENTARY ON THE FACTS OR EVENTS DEPICTED IN THIS IMAGE

In this image taken from video, from left, Britain's Queen Elizabeth II, Britain's Prince Philip, and Britain's Prince Charles sing during the ceremony at Westminster Abbey for the Royal Wedding in London on Friday, April, 29, 2011. (AP Photo/APTN) EDITORIAL USE ONLY NO ARCHIVE PHOTO TO BE USED SOLELY TO ILLUSTRATE NEWS REPORTING OR COMMENTARY ON THE FACTS OR EVENTS DEPICTED IN THIS IMAGE

In this image taken from video, British singer Elton John, center, and his partner David Furnish, left, sing during the ceremony at Westminster Abbey for the Royal Wedding in London on Friday, April, 29, 2011. (AP Photo/APTN) EDITORIAL USE ONLY NO ARCHIVE PHOTO TO BE USED SOLELY TO ILLUSTRATE NEWS REPORTING OR COMMENTARY ON THE FACTS OR EVENTS DEPICTED IN THIS IMAGE

In this image taken from video, Britain's Prince William, left, places the ring on the finger of his bride, Kate Middleton, as they stand at the altar at Westminster Abbey for the Royal Wedding in London on Friday, April, 29, 2011. (AP Photo/APTN) EDITORIAL USE ONLY NO ARCHIVE PHOTO TO BE USED SOLELY TO ILLUSTRATE NEWS REPORTING OR COMMENTARY ON THE FACTS OR EVENTS DEPICTED IN THIS IMAGE

Prince William (L) and Kate Middleton (C) exchange rings in front of the Archbishop of Canterbury at Westminster Abbey, on April 29, 2011 in London AFP PHOTO/ POOL/ DOMINIC LIPINSKI (Photo credit should read Dominic Lipinski/AFP/Getty Images)

Britain's Prince William (L) and Kate Middleton (C) exchange vows in front of the Archbishop of Canterbury during their wedding ceremony at Westminster Abbey in London on April 29, 2011. AFP PHOTO / WPA POOL / Dominic Lipinski (Photo credit should read Dominic Lipinski/AFP/Getty Images)

Britain's Prince William and Kate, Duchess of Cambridge, exchange rings in front of the Archbishop of Canterbury at Westminster Abbey, on April 29, 2011 in London AFP PHOTO/ WPA POOL/ DOMINIC LIPINSKI ALTERNATIVE CROP (Photo credit should read Dominic Lipinski/AFP/Getty Images)

Kate Middleton and Britain's Prince William are married by the Archbishop of Canterbury during their Royal Wedding ceremony at Westminster Abbey in London, as her father Michael Middleton (L) and Best Man Prince Harry (R) look on, on April 29, 2011. AFP PHOTO / WPA POOL/ Anthony Devlin (Photo credit should read Anthony Devlin/AFP/Getty Images)

LONDON, ENGLAND - APRIL 29: (L-R) Archbishop of Canterbury Rowan Williams, Bishop of London Richard Chartres and Dean of Westminster John Hall have a conversation before the start of the wedding at Westminster Abbey ahead of the Royal Wedding of Prince William to Catherine Middleton at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne is to be led by the Archbishop of Canterbury and will be attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Suzanne Plunkett - WPA Pool/Getty Images)

Britain's Queen Elizabeth II rides in a carriage with Britain's Prince Philip on their way to Buckingham Palace after the Royal Wedding of Britain's Prince William and his wife Kate, Duchess of Cambridge in London Friday, April, 29, 2011. (AP Photo/Matt Dunham)

LONDON, ENGLAND - APRIL 29: Queen Elizabeth II and Prince Philip, Duke of Edinburgh ride in a carriage procession to Buckingham Palace following the marriage of Their Royal Highnesses Prince William Duke of Cambridge and Catherine Duchess of Cambridge at Westminster Abbey on April 29, 2011 in London, England. The marriage of the second in line to the British throne was led by the Archbishop of Canterbury and was attended by 1900 guests, including foreign Royal family members and heads of state. Thousands of well-wishers from around the world have also flocked to London to witness the spectacle and pageantry of the Royal Wedding. (Photo by Dan Kitwood/Getty Images)

Britain's Prince William and Kate, the Duchess of Cambridge walk, down the aisle after their wedding service at Westminster Abbey, London, Friday April 29, 2011. (AP Photo/Dominic Lipinski, Pool)

Kate, the Duchess of Cambridge, and Britain's Prince William walk hand in hand after their wedding service at Westminster Abbey, London, Friday April 29, 2011. (AP Photo/Dominic Lipinski, Pool)

Britain's Prince William and Kate, the Duchess of Cambridge, wave as they travel in the 1902 State Landau carriage along the processional route to Buckingham Palace, London, Friday April 29, 2011. (AP Photo/Damien Meyer, Pool)

Britain's Prince William and Kate, the Duchess of Cambridge, travel in the 1902 State Landau carriage along the processional route to Buckingham Palace, London, Friday April 29, 2011. (AP Photo/Damien Meyer, Pool)

Britain's Prince William, center left, and his wife Kate, the Duchess of Cambridge, center right, walk down the aisle of Westminster Abbey following their wedding service, London, Friday April 29, 2011. (AP Photo/Dominic Lipinski, Pool)

Carole Middleton, mother of Kate, Duchess of Cambridge, travels along the processional route on the day of the wedding of Britain's Prince William and the Duchess of Cambridge, on April 29, 2011, in central London. AFP PHOTO / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)

Britain's Prince William and his wife Kate, Duchess of Cambridge stand outside of Westminster Abbey after their Royal Wedding in London Friday, April, 29, 2011. (AP Photo/Martin Meissner)

Britain's Prince William and his wife Kate, Duchess of Cambridge, leave Westminster Abbey at the Royal Wedding in London Friday, April 29, 2011. (AP Photo/Gero Breloer)

Britain's Prince William and his wife Kate, Duchess of Cambridge, left, wave as they leave Westminster Abbey at the Royal Wedding in London Friday, April 29, 2011. (AP Photo/Alastair Grant)

Kate Middleton is led by her father Michael Middleton along the aisle at Westminster Abbey, London, Friday April 29, 2011. (AP Photo/Dominic Lipinski, Pool)

Britain's Prince William and his wife Kate, Duchess of Cambridge, left, wave as they leave Westminster Abbey at the Royal Wedding in London Friday, April 29, 2011. (AP Photo/Gero Breloer)

A general view of the wedding service of Britain's Prince William and Kate Middleton, centre, at Westminster Abbey, London, Friday April 29, 2011. (AP Photo/Dominic Lipinski, Pool)

Britain's Prince William, center right, and his wife Kate, the Duchess of Cambridge, center left, hold hands during their wedding service at Westminster Abbey in London, Friday, April 29, 2011. (AP Photo/Kirsty Wigglesworth, Pool)

Britain's Prince William and his wife Kate stand outside of Westminster Abbey after their Royal Wedding in London Friday.