Jackson's mother, Katherine, is suing AEG, alleging it was negligent in hiring Dr. Conrad Murray. He is serving four years in prison for involuntary manslaughter in the death of the pop icon.
Now, attorneys for AEG Live are asking dermatologist Dr. Arnold Klein to turn over all of Jackson's medical records dating back to 1984. The attorneys say they need the additional documents to assist them in their defense of the company, and that they previously reached an agreement with Jackson's estate concerning the scope of medical records they could receive from the singer's physicians.
So far, Klein has handed over records from 2008 to 2009. A hearing on the issue is scheduled for September.
Jackson was set to perform 50 shows in London for AEG Live, but he died June 25, 2009, of acute propofol intoxication in Los Angeles while rehearsing for the concert series.