** FILE ** Britain's Prince William (left) and Prince Harry (center) and their father, Prince Charles, leave a service of thanksgiving for the life of Diana, Princess of Wales, at the Guards' Chapel in London on Friday, Aug. 31, 2007. The two young princes organized the service to commemorate the life of their mother on the 10th anniversary of her death. (AP Photo/Lewis Whyld, Pool)

Photo by: Lewis Whyld

** FILE ** Britain's Prince William (left) and Prince Harry (center) and their father, Prince Charles, leave a service of thanksgiving for the life of Diana, Princess of Wales, at the Guards' Chapel in London on Friday, Aug. 31, 2007. The two young princes organized the service to commemorate the life of their mother on the 10th anniversary of her death. (AP Photo/Lewis Whyld, Pool)