LOS ANGELES (AFP) - Michael Jackson’s mother accused the promoter of his doomed final tour Monday of sacrificing the troubled star in a “ruthless” pursuit of profit in the months before his 2009 death.

At the opening of a trial pitting Katherine Jackson against AEG Live, her lawyer Brian Panish alleged the promoter was negligent in hiring doctor Conrad Murray, who was convicted in 2011 of causing Jackson’s death.

But Anschutz Entertainment Group (AEG) lawyer Marvin Putnam argued the mega pop star had hidden the evidence of his addiction and health woes from everyone, including his family and the concert promoters.

He claimed evidence presented at the trial will show that Jackson had used propofol — the anesthetic drug which caused his death — since the 1990s to help him sleep, and been repeatedly warned that it could kill him.

“Mr Jackson got very very good at hiding his addiction,” Putnam told the court, adding that “even his family and friends didn’t know” about his propofol abuse.

Jackson’s 82-year-old mother sat impassively in the front row, flanked by his siblings Randy and Rebbie, as details of the self-styled King of Pop’s long-term drug and alcohol abuse were listed in court.

Panish accused AEG of neglecting its duty of care to Jackson, as it strove to become the world’s biggest concert promoter through the doomed “This is it” series of concerts in London.

“AEG had a problem and they wanted to fix it. And they didn’t care who got lost in the wash,” he said. “They were ruthless. They wanted to be number one at all costs.”

“Michael Jackson, Dr. Conrad Murray and AEG Live each played a part in the ultimate result, the death of Michael Jackson,” he said, but added: “Without AEG none of this would ever have occurred.” But Putnam, in his opening statement, said AEG simply did not see any red flags.

“The truth is Mr. Jackson fooled everyone,” he said, showing rehearsal footage from two days before his death to illustrate how the singer had concealed his troubles in public.

“He made sure that nobody knew his deepest, darkest secret,” aside from the doctors who prescribed him the drugs, Putnam said.