A Los Angeles jury has found unanimously that concert promoter AEG Live was not liable in the wrongful death lawsuit brought by family members of singer Michael Jackson.

The jury found that the doctor the company hired for the singer was not unfit for his job.

The verdict ended a five-month trial that opened a window into the late entertainer's private life and final days.

Jackson died at the age of 50 in Los Angeles in 2009.

His mother Katherine and his three children sued AEG Live over the singer's death from an overdose of the surgical anaesthetic propofol.

The family alleged that AEG Live negligently hired Conrad Murray as Jackson's personal physician and ignored signs the singer was in poor health prior to his death.

Murray was convicted of involuntary manslaughter in 2011 for administering the propofol that killed the star.

The doctor had been caring for Jackson as the singer rehearsed for his series of 50 comeback "This Is It" concerts.