Shirley MacLaine celebrates her landmark 90th birthday with low-key lunch in Malibu… ahead of the release of Oscar-winner’s new memoir The Wall of Life

The legendary Shirley MacLaine kicked off her 90th birthday with a fancy lunch in Malibu on Thursday.

The Oscar winner wore a trucker cap over her white hair and she wore black glasses for her low-key celebrations.

“I have my friends and I’m very healthy,” Shirley explained People on Wednesday.

‘I started my dance training at the age of three and stopped around the age of 67. It taught me discipline, loving music, working with people and dealing with pain.’

MacLaine was joined by a blonde female companion ahead of her intimate birthday dinner with friends: “We’re getting together and I hope to have something good to eat.”

The legendary Shirley MacLaine kicked off her 90th birthday with a fancy lunch in Malibu on Thursday

The Oscar winner wore a trucker cap over her white hair and she wore black glasses for her low-key celebrations

The Oscar winner wore a trucker cap over her white hair and she wore black glasses for her low-key celebrations

The Only Murders in the Building guest star just announced that Crown will publish her 288-page memoir The Wall of Life: Pictures and Stories from This Marvelous Lifetime on October 22.

‘I’ve lived a great life and I wanted to share it. All the photos brought back such wonderful memories,” Shirley said.

‘About 45 years ago I posted about a dozen framed photos of friends, family and people I’ve worked with, all grouped together on the living room wall. Everyone who passed by enjoyed watching this montage, and thus The Wall of Life was born. I’m pleased to share a selection of these photos – and some of the stories behind them – in this book.’

The $35 book will include stories about MacLaine’s seven-decade career, advice to Elvis Presley, insight into Jack Nicholson and the Dalai Lama, as well as her childhood growing up with brother Warren Beatty.

The Virginia-born redhead moved to New York City in 1950 at the age of 16 and got her big break as a stand-in in Broadway’s The Pajama Game in 1954 before landing roles in Alfred Hitchcock’s 1955 comedy The Trouble with Harry and Billy Wilder’s 1960 rom. -com The Apartment.

After earning five Academy Award nominations, Shirley finally won Oscar gold for her searing portrayal of Houston socialite Aurora Greenway, whose daughter is battling cancer, in James L. Brooks’ 1983 drama series Terms of Endearment.

MacLaine is also famous for her performances in Sweet Charity (1969), The Turning Point (1977), Steel Magnolias (1989), Postcards from the Edge (1990), etc.

The Emmy winner – the only female Rat Packer – loved her What a Way to Go leading man Robert Mitchum, as well as Prime Minister Olof Palme of Sweden, novelist Pete Hamill and French heartthrob Yves Montand.

Shirley was joined by a blonde female companion ahead of her intimate birthday dinner with friends: 'We're getting together and I hope to eat something good'

Shirley was joined by a blonde female companion ahead of her intimate birthday dinner with friends: ‘We’re getting together and I hope to eat something good’

MacLaine (born MacLean Beaty) just announced that Crown will publish her 288-page memoir The Wall of Life: Pictures and Stories from This Marvelous Lifetime on October 22

MacLaine (born MacLean Beaty) just announced that Crown will publish her 288-page memoir The Wall of Life: Pictures and Stories from This Marvelous Lifetime on October 22

Shirley β€” who last October dropped the price of her Plaza Blanca Ranch in New Mexico to $4.3 million β€” is notoriously estranged from her daughter Sachi Parker, who wrote a scathing tell-all in 2013 called Lucky Me.

MacLaine gave birth to her only child during her open 28-year marriage to the late Steve Parker, which ended in 1982.

The 67-year-old actress has two adult children: son Frank, 27; and daughter Arin, 25 – from her 18-year marriage to investment banker Frank Murray, which ended in 2011.

The NY Times bestselling author has previously published twenty books, including memoirs and books on metaphysics, spirituality and reincarnation.

Shirley will soon fly to Atlantic City, New Jersey, to film her role as “a cheerful woman in her final years who forms an unlikely friendship with a homeless man” in Brad Furman’s drama People Not Places.

β€œIt’s a beautiful script and we’re getting ready to go and see what happens,” MacLaine said.

‘[I’m so grateful] that I can continue to work.’

The Downton Abbey scene stealer was honored with the Film Society of Lincoln Center Tribute in 1995, the Cecil B. DeMille Award in 1998, the AFI Life Achievement Award in 2012 and the Kennedy Center Honor in 2013.

The $35 book will feature stories about Only Murders in the Building guest star's seven-decade career, advice to Elvis Presley, insight into Jack Nicholson and the Dalai Lama, as well as her childhood growing up with brother Warren Beatty (right, pictured in 1966)

The $35 book will feature stories about Only Murders in the Building guest star’s seven-decade career, advice to Elvis Presley, insight into Jack Nicholson and the Dalai Lama, as well as her childhood growing up with brother Warren Beatty (right, pictured in 1966)

Shirley moved to New York City in 1950 at the age of 16 and she got her big break in 1954 as a stand-in in Broadway's The Pajama Game before landing roles in Alfred Hitchcock's 1955 comedy The Trouble starring Harry and Billy Wilder's rom -com The Apartment from 1960 (photo)

Shirley moved to New York City in 1950 at the age of 16 and she got her big break in 1954 as a stand-in in Broadway’s The Pajama Game before landing roles in Alfred Hitchcock’s 1955 comedy The Trouble starring Harry and Billy Wilder’s rom -com The Apartment from 1960 (photo)

After earning five Academy Award nominations, MacLaine ultimately won Oscar gold for her searing portrayal of Houston socialite Aurora Greenway, whose daughter is battling cancer, in James L. Brooks' 1983 drama Terms of Endearment

After earning five Academy Award nominations, MacLaine ultimately won Oscar gold for her searing portrayal of Houston socialite Aurora Greenway, whose daughter is battling cancer, in James L. Brooks’ 1983 drama Terms of Endearment

The Virginia-born redhead is also famous for her appearances in Sweet Charity, The Turning Point, Steel Magnolias, Postcards from the Edge (pictured in 1990), etc.

The Virginia-born redhead is also famous for her appearances in Sweet Charity, The Turning Point, Steel Magnolias, Postcards from the Edge (pictured in 1990), etc.

Shirley – the only female Rat Packer – loved and left her What a Way to Go protagonist Robert Mitchum (right, pictured in 1964), as did Prime Minister Olof Palme of Sweden, novelist Pete Hamill and French heartthrob Yves Montand

Shirley – the only female Rat Packer – loved and left her What a Way to Go protagonist Robert Mitchum (right, pictured in 1964), as did Prime Minister Olof Palme of Sweden, novelist Pete Hamill and French heartthrob Yves Montand

MacLaine will soon fly to Atlantic City, New Jersey, to film her role as

MacLaine will soon fly to Atlantic City, New Jersey, to film her role as “a cheerful woman in her final years who forms an unlikely friendship with a homeless man” in Brad Furman’s (L, pictured in 2012) drama People Not Places