Paramedics were called to the singers beverly hills home at about midday on thursday after he stopped breathing. He was pronounced dead two hours later at the u C l a medical centre. Jackson, who had a history of health problems, had been due to perform a series of comebact concerts in Los Angeles beginning on July 13. Concerns over his health were raised last month when four of jackson's planned combact concerts were postponed. But organizers insisted thet dates had been moved due to the difficulty of organizing the show.