Riley Keough poses in a bra as she wishes her twin sisters a happy 16th birthday… the day before her mother Lisa Marie Presley’s memoir debuts

Riley Keough wished her twin sisters Harper and Finley a happy 16th birthday on Monday.

The actress took to Instagram for the sweet post where she showed off several throwback photos.

‘Happy Sweet 16 to my angel girls. You are the most special girls in the whole world. I’m so lucky to be your big sissy ,” the beauty wrote.

Their mother is the late Lisa Marie Presley, the daughter of Elvis Presley and Priscilla Presley. And their father is musician Michael Lockwood.

This comes a day before Lisa’s memoir From Here To The Great Unknown premieres.

Last week A preview was shared of her interview with Oprah, which airs on Tuesday, the same day the book comes out.

The Daisy Jones And The Six actress said her mother Lisa Marie knew something was wrong the morning her very famous singer father Elvis Presley died.

Presley died unexpectedly at his Graceland estate in August 1977 at the age of 42.

Lisa – who was just nine years old at the time – woke up and felt something was wrong, Riley told Oprah.

Keough also said her mother often worried about her father when she saw him lying disheveled in the bathroom or clinging to a railing.

When Oprah added whether there was a lot of ‘chaos’ at home with Elvis, she said yes.

And Riley also provided a letter her mother Lisa had written when she was a child, saying she hoped her father wouldn’t die.

Riley is promoting her late mother’s memoir, From Here To The Great Unknown, which she helped finish; it comes out next week.

Riley also said that the night before Elvis died, she had a “feeling” that he wouldn’t be around much longer.

An Oprah Special: The Presleys – Elvis, Lisa Marie and Riley airs Tuesday, October 8 at 8pm EST on @cbstv.

Oprah begins in the clip: “The morning of Elvis’ death, your mother woke up and instinctively knew something was wrong. Would you like to tell us about that? She is nine years old and most of us remember when we were nine years old.”

Keough, who was wearing a white dress, said, “Yeah, definitely. I think this is the first time she talks about his death in detail in the book.

“She said good night to him and I think she knew she was saying ‘good night’: like she had some kind of feeling – I think she often had the feeling that he wasn’t well.

“She told me that sometimes she would find him in his bathroom looking a little funny or holding on to the railing to stand up.”

And Lisa Marie documented her concerns.

“She also wrote these letters when she was little, saying, ‘I hope my father doesn’t die.’

The letter was shown during the teaser of the Oprah interview.

“So there was some kind of feeling to it.”

After confirming that the house was full of chaos, Riley added, “But it was just her and her dad upstairs. I think she had a lot of intimate time with him there. There was no one else up there.”

Lisa Marie died at the age of 54 from a small intestinal obstruction that developed after she underwent bariatric surgery several years earlier.

This comes after Keough shared a sweet Instagram post about her mother.

‘I am very proud and in awe of my mother. Somehow she always lived in honesty and truth, no matter how uncomfortable it was for her or those around her,” the star wrote in her caption.

‘It was a really ambitious quality and it was liberating just to be there.

‘That’s how she approached her autobiography. I know her intention was to tell a human story and connect with people by telling it. I feel incredibly lucky to have had the opportunity to finish it for her.”

She ended her note with: ‘FROM HERE TO THE GREAT UNKNOWN officially coming out in five days, on 8/10 ‘

Lisa Marie is the daughter of rock icon Elvis Presley and actress Priscilla Presley.

She was also married to the King of Pop Michael Jackson and Nicolas Cage.

Keough – whose father is Lisa Marie’s former husband Danny Keough – was promoting Lisa Marie’s memoir, From Here To The Great Unknown.

It will be published on October 8, 2024 by Pan MacMillan.

Presley asked Keough to help her write the memoir in 2022, shortly before her death. It features the late star’s unheard interviews.

Riley will also narrate part of the audiobook alongside film star Julia Roberts.

The audiobook also includes never-before-heard selections from Lisa Marie’s tape recordings.

The book is about growing up as the daughter of rock king Elvis and actress Priscilla Presley.

“Because my mother was Elvis Presley’s daughter, she was constantly talked about, argued about and dissected,” Riley told People.

“What she wanted to do in her memoir, and what I hope I’ve done to complete it for her, is go beneath the idea of ​​the magazine headline about her and reveal the core of who she was.

“To make her a three-dimensional human being: the best mother, a wild child, a fierce friend, an underrated artist, outspoken, funny, traumatized, joyful, grieving, everything she was throughout her remarkable life.

“I want to give my mother a voice in a way that eluded her during her lifetime.”