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OTTAWA, ON - JULY 1: (NO UK SALES FOR 28 DAYS) Catherine, Duchess of Cambridge attends the Evening National Canada Day Celebrations on day 2 of the Royal Couple's North American Tour on July 1, 2011 in Ottawa, Canada. (Photo by Samir Hussein/WireImage)

OTTAWA, ON - JULY 1: (NO UK SALES FOR 28 DAYS) Catherine, Duchess of Cambridge attends the Evening National Canada Day Celebrations on day 2 of the Royal Couple's North American Tour on July 1, 2011 in Ottawa, Canada. (Photo by Samir Hussein/WireImage)
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WireImage Samir Hussein