The official Whitney Houston cause of death was drowning, the Los Angeles County Coroner announced on Thursday. Whitney Houston drowned, according to the coroner’s report, but heart disease and cocaine use contributed to the late singer’s death.

Legendary soul singer Aretha Franklin is denying she was uninvited from the Whitney Houston funeral over a spat with Houston’s mother, Cissy Houston. Franklin was originally scheduled to perform at the funeral, but turned out to be a no-show. After Aretha Franklin failed to appear at Houston’s funeral, rumors began to swirl that she had somehow offended the late singer’s mother.

The official Whitney Houston cause of death was not listed on her death certificate filed with Los Angeles County. So far, nothing conclusive has been ruled as the reason why the 48-year-old superstar died, although a combination of drugs and alcohol is suspected. An official cause of death will likely not be released until toxicology results from the Whitney Houston autopsy are completed in four to six weeks.

Although an official Whitney Houston cause of death has not yet been released by the Los Angeles Coroner’s office, sources close to the family reportedly say the singer probably died of a mix of drugs and alcohol. Whitney Houston was found dead on Saturday in the bathtub of the Beverly Hilton Hotel. Despite reports that the pop icon was found underwater, she allegedly did not die of drowning.

The 2012 Grammy Awards on Sunday opened with a somber mood as celebrities spoke on the red carpet about their grief over Whitney Houston’s death. Normally a night for celebration and revelry, the 54th annual Grammy Awards 2012 will no doubt be most remembered for occurring the night after the death of one of music’s most legendary performers.

The Whitney Houston cause of death still remains unknown a day after the superstar’s death in a Beverly Hills hotel room. The Whitney Houston autopsy results have been completed, but the report has been put under a security hold due to the ongoing investigation into her death. Toxicology tests from the singer’s death could take from six to eight weeks.

The sudden death of Whitney Houston at the age of 48 on Saturday from unknown causes sent shockwaves of grief through her fans and fellow celebrities. Whitney Houston died Saturday afternoon at the Beverly Hilton Hotel. An official cause of death is not yet known, but rumors are already swirling that her death may have been related to her past history of drug and alcohol abuse.