Michael Jackson's personal assistant Michael Amir Williams claims that concert promoter AEG owes him money because it is responsible for the pop icon's death.

Williams was considered one of the people closest to the pop star in the last two years of his life. According to The Chicago Tribune, Williams filed the lawsuit on Friday and hopes that other former Jackson employees will join in as a class action.

CNN reported that the case, which was filed in Los Angeles County Superior Court, claims that AEG's "acts and omissions brought about the demise of Michael Jackson."

Marvin Putnam, AEG's lawyer, referred to the lawsuit as "clearly frivolous" because Williams has no legal standing to sue since he was not part of the contract.

"It is truly unfortunate that so many see Mr. Jackson's demise as an opportunity to grab as much for themselves as possible," Putnam said. "This is just the latest wrongful death lawsuit with someone hoping to profit from Michael Jackson's tragic death in the same way they profited from his tragic life."

Documents filed with the lawsuit includes a copy of AEG's contract with Jackson. The contract revealed that the promoter agreed to give the singer $15 million in advance to help him buy a 29-bedroom mansion in Las Vegas.

The lawsuit states: "After the contract was signed and performance begun, Michael Jackson had problems keeping up with the pace of Tour's rigorous schedule and physical demands."

"In response, AEG began a series of unreasonable acts and omissions," the lawsuit also said.

CNN confirmed that the "acts and omissions" allegedly involved the hiring and supervision of Dr. Conrad Murray, who was Jackson's personal physician while he prepared for his "This Is It" tours.

Murray was convicted a year ago for involuntary manslaughter in Jackson's death.

"AEG used Conrad Murray as a tool to further its business purposes and abused the sole discretion given to AEG under (the) contract," according to the suit.

The company looked passed "Conrad Murray's qualifications, experience, and medical specialty," and concentrated on the benefits Murray could bring to them, including "managing Michael Jackson so that he could meet all deadlines and timetables AEG set in place," it said.

This is not the only lawsuit filed against AEG. The concert promoter is also defending itself in another wrongful death lawsuit filed by Jackson's mother and his three children. AEG denies it was responsible for hiring or supervising Murray.

That suit is set to be brought in front of a jury next April.

Jackson died of an overdose of the surgical anesthetic propofol combined with sedatives on June 25, 2009. That was two weeks before his concerts were scheduled to begin in London.