Lisa Marie Presley's daughter Riley Keough breaks her silence on her mother's death before performing her public service

 Lisa Marie Presley's daughter Riley Keough is breaking her silence on her mother's death.

On Friday, the 33-year-old shared an old photo of herself lovingly watching her mother hug her from behind. She captioned the image with just a heart.

The sweet memorial comes as it is widely reported that Lisa Marie has been laid to rest at Graceland, but sources told Access Hollywood that she has not been laid to rest, but will have a private funeral. before the public memorial service on Sunday.

Elvis Presley's only child with his father and parents, Vernon and Gladys, who are also buried in the iconic Memphis home.

A public memorial service will be held on the lawn of the property on January 22.

The update came as a decision on the cause of his death has been delayed. According to a spokesperson for the L.A. County Medical Clinic, an autopsy of the late musician has been performed.

She was tested on January 1st. NBC News said: "We died on October 14 and the cause of death has been announced.

Lisa Marie died on January 12 after being taken to the hospital in cardiac arrest.

An agent has confirmed to Access Hollywood that upon his death, his three daughters, Riley Keough, Finley and Harper Lockwood will inherit their grandfather's famous fortune.