Lisa Marie Presley has died after being rushed to hospital after a reported cardiac arrest.
The 54-year-old was the only child of Elvis Presley and Priscilla Presley.
Priscilla confirmed the "devastating" news after earlier asking for prayers.
"It is with a heavy heart that I must share the devastating news that my beautiful daughter Lisa Marie has left us," Priscilla said in a statement.
"She was the most passionate, strong and loving woman I have ever known."
The announcement came hours after Lisa Marie was rushed to the hospital on Thursday (local time).
Los Angeles County paramedics attended a home in Calabasas following a report of a woman in full cardiac arrest, according to a spokesman for the county's fire department.
Property records indicate Lisa Marie was a resident at that address.
A spokesperson for the LA County Sheriff's Department said the patient had shown "signs of life" before being transported to hospital for "immediate medical care".
Lisa Marie was born in 1968 and is the owner of her father's Graceland mansion in Memphis.
She was nine years old when Elvis died at Graceland in 1977, from a heart attack, aged 42.
'Heartbroken': Tributes flow for Lisa Marie
Childhood friend Leah Remini was among the first to pay tribute to Lisa Marie on social media after news of her death broke.
Remini, who was friends with Lisa Marie while both were members of the Church of Scientology, said she was "heartbroken".
Actor Corey Feldman also shared his grief on social media, saying he head "spent hours on the phone" with Lisa Marie during divorce proceedings with Michael Jackson.
"Her son Ben was like a little brother to me, so much loss, so much tragedy in their family," Feldman said on Twitter.
"From the brief few hours we spent talking I sensed she was a beautiful, powerful woman, who wanted to make her own rules.
Attended Golden Globes two days before death
Lisa Marie attended the Golden Globes earlier this week to watch actor Austin Butler win best actor in a motion picture — drama for his portrayal of Elvis.
Butler paid tribute to Lisa Marie and Priscilla in his acceptance speech on stage.
"The Presley family, thank you guys for opening your hearts, your memories, your home to me," he said.
"Lisa Marie and Priscilla, I love you forever."
During an interview on the red carpet with Entertainment Tonight, Lisa Marie said Butler's performance was "mind-blowing".
Only days earlier, she had visited Graceland, the mansion where her father lived in Memphis, Tennessee, to celebrate his birthday on January 8.
In a speech commemorating what would have been his 88th birthday, she said: "I think he would be proud, this year's been an incredible year.
"It's just so moving how every year you come from all over the world. It's moving to me and my family, and I thank you."
Released three albums, married Michael Jackson
Her own music career began with a 2003 debut album, To Whom It May Concern, followed by a second album, Now What, in 2005.
Both hits made the top 10 of the Billboard 200 album chart.
Her third album, Storm and Grace, was released in 2012.
Presley married musician Danny Keough in 1988, with whom she had two children.
Weeks after her divorce to Keough, she married Michael Jackson.
However, the two announced their separation in 1995 and their divorce was finalised the next year.
In 2002, she had a short-lived marriage to actor and film producer, Nicolas Cage, with their divorce finalised in 2004.
She married her guitarist, music producer and director, Michael Lockwood, in 2006 and the couple welcomed twin girls in 2008.
She had four children. Her only son, Benjamin Keough, died by suicide in 2020 at the age of 27.
Her daughter Riley Keough, 33, is an actress and her twins, Harper and Finley Lockwood, are 14.
ABC/AP
