QUEBEC CITY, QC - JULY 03: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge disembark HMCS Montreal on day 4 of the Royal Couple's North American Tour, July 3, 2011 in Quebec, Canada. (Photo by Samir Hussein/WireImage)
QUEBEC CITY, QC - JULY 03: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge disembark HMCS Montreal on day 4 of the Royal Couple's North American Tour, July 3, 2011 in Quebec, Canada. (Photo by Samir Hussein/WireImage)