Michael Jackson's children Paris, Blanket and Prince attend the memorial concert at the Staples Center in LA.The singer's 11-year-old daughter has told her aunt La Toya, Jackson's sister, that the strain of preparing for his 50-date This Is It residency in London was too much for him to handle.
La Toya, 53, who makes the claims on Channel 4's The Paul O'Grady show, claims Paris said: "The cardiologist was the best, so how could this happen? What happened is they worked him too hard.