She is believed to be targeting both the promoters behind the shows, AEG, and Michael’s personal doctor, Conrad Murray, in a $100 million wrongful death lawsuit.

Katherine’s lawyer Burt Levitch said: “The possibility of a wrongful death action has been floated.

"In that regard, no decision has been finalised. Dr. Murray’s name has been put forward because he is under investigation.

"It’s fairly obvious from press accounts that AEG had a very active role in Michael’s life for the last six months. They paid for his home and for Dr. Conrad Murray."

Katherine may sue for her son’s loss of earnings and her emotional distress.

Michael died of a suspected cardiac arrest in June, after reportedly ingesting a cocktail of prescription drugs.

Dr. Murray was with him at the time of his death, and is alleged to have administered powerful anaesthetic Propofol.

Michael was rehearsing for his comeback shows at the time of his death, and his family believe he turned to drugs to get through his gruelling preparation schedule for the performances.

A spokesperson for AEG said: “It would be inappropriate to speculate on any potential litigation.”

Meanwhile, the Jackson family have confirmed Michael will be buried on August 29, which would have been his 51st birthday.

The service will take place at 10am at Los Angeles’ Forest Lawn Memorial Park cemetery. - Bang