CALGARY, AB - JULY 08: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the Calgary Stampede on day 9 of the Royal couple's tour of North America on July 8, 2011 in Calgary, Canada. (Photo by Samir Hussein/WireImage)
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the Calgary Stampede Parade on day 9 of the Royal couple's tour of North America on July 8, 2011 in Calgary, Canada.
CALGARY, AB - JULY 08: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend the Calgary Stampede on day 9 of the Royal couple's tour of North America on July 8, 2011 in Calgary, Canada. (Photo by Samir Hussein/WireImage)
CALGARY, AB - JULY 08: Catherine, Duchess of Cambridge attends the Calgary Stampede on day 9 of the Royal couple's tour of North America on July 8, 2011 in Calgary, Canada. (Photo by Samir Hussein/WireImage)
