The official results of an autopsy performed on Whitney Houston yesterday will not be released for weeks.
But sources tell TMZ the family of this legend has been informed by the coroner's office that Houston died from a lethal mixture of prescription pills, most notably Xanax, and alcohol.
As previously confirmed, Houston was found unresponsive in her hotel room bathtub on Saturday afternoon and new reports identity the singer's aunt, Mary Jones, as the individual who found her there and administered CPR on the bathroom floor.
However, officials have told the family Whitney likely died prior to being submerged, as there was not enough water in the artist's lungs to cite drowning as the cause of death.
At last night's Grammy Awards, meanwhile, host LL Cool J led the audience in a prayer for Houston, while Jennifer Hudson later paid emotional tribute to the icon via a rendition of "I Will Always Love You."