Michael Jackson was killed by powerful drugs, and someone was responsible for his death, the people investigating how he died have confirmed.
The Los Angeles coroner said the way he died was homicide, which means someone killed him, on purpose or accidentally.
They confirmed that he was killed by a drug called Propofol, which is normally used to send people to sleep if they have a serious operation.
Jackson's doctor, Dr Conrad Murray, has not been named as a suspect.
Another drug, Lorazepam, also helped kill the singer in his home in June.
Lawyers will now investigate a number of doctors whose names came up in connection to Michael's death.
Michael is due to be buried on Thursday in Los Angeles. He would have celebrated his 51st birthday on Saturday.