CHELTENHAM, UNITED KINGDOM - MARCH 15: Catherine, Duchess of Cambridge attends day 4 of the Cheltenham Festival on Gold Cup Day at Cheltenham racecourse on March 15, 2013 in London, England. (Photo by Samir Hussein/WireImage)
CHELTENHAM, UNITED KINGDOM - MARCH 15: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge watches the racing as she attends Day 4 of The Cheltenham Festival at Cheltenham Racecourse on March 15, 2013 in London, England. (Photo by Indigo/Getty Images)
CHELTENHAM, UNITED KINGDOM - MARCH 15: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends Day 4 of The Cheltenham Festival at Cheltenham Racecourse on March 15, 2013 in London, England. (Photo by Indigo/Getty Images)
