PHOTOS: Olivia Newton-John through the years

Portrait of Olivia Newton-John taken on 18th December 1971.; (Photo by King Collection/Avalon/Getty Images) (Avalon, Getty)

Olivia Newton-John has died after repeated treatments for cancer, her family announced Monday. She was 73.

“Dame Olivia Newton-John (73) passed away peacefully at her Ranch in Southern California this morning, surrounded by family and friends.” John Easterling, her husband, said in a statement on her official Facebook page. “We ask that everyone please respect the family’s privacy during this very difficult time.”

Scroll below for glimpses of Olivia Newton-John through the years.

MORE: Olivia Newton-John, superstar singer and actress, dies at 73

Australian singing duo Pat Carroll (left) and Olivia Newton-John, aka Pat and Olivia, pose with a kitten, UK, November 1967. (Photo by Keystone Features/Hulton Archive/Getty Images) (Getty)
Australian singer and actress Olivia Newton-John, circa 1968. (Photo by Keystone/Hulton Archive/Getty Images) (Getty)
Australian singer and actress Olivia Newton-John, circa 1968. (Photo by Keystone/Hulton Archive/Getty Images) (Getty)
Australian singer and actress Olivia Newton-John in the garden of her home in Hertfordshire, UK, June 1970. (Photo by Keystone/Hulton Archive/Getty Images) (Getty)
UNSPECIFIED - CIRCA 1970: Photo of Olivia Newton-John Photo by Michael Ochs Archives/Getty Images (Getty)
Portrait of Olivia Newton-John taken on 18th December 1971.; (Photo by King Collection/Avalon/Getty Images) (Getty)
UNITED STATES - JANUARY 01: Photo of OLIVIA NEWTON-JOHN (Photo by Steve Morley/Redferns) (Getty)
UNITED KINGDOM - JANUARY 01: TOP OF THE POPS Photo of Olivia NEWTON JOHN, Olivia Newton John performing on tv show (Photo by Ron Howard/Redferns) (Getty)
UNSPECIFIED - MAY 01: Actress and singer Olivia Newton-John in May 1977. (Photo by David Redfern/Redferns) (Getty)
UNSPECIFIED - CIRCA 1970: Photo of Grease Premier Photo by Michael Ochs Archives/Getty Images (Getty)
UNSPECIFIED - CIRCA 1970: Photo of Grease Premier Photo by Michael Ochs Archives/Getty Images (Getty)
Olivia Newton-John, Didi Conn and the rest of the girls sing in a scene from the film 'Grease', 1978. (Photo by Paramount/Getty Images) (2012 Getty Images)
Australian singer and actress Olivia Newton-John and American actor John Travolta as they appear in the Paramount film 'Grease', 1978. (Photo by Paramount Pictures/Fotos International/Getty Images) (2011 Getty Images)
LOS ANGELES, CA - CIRCA 1981: Olivia Newton-John circa 1981 in Los Angeles, California. (Photo by Zanger/IMAGES/Getty Images) (Getty)
Singer Olivia Newton John performs onstage at the Poplar Creek Music Theater in Hoffman Estates, Illinois, August 29, 1982. (Photo by Paul Natkin/Getty Images) (Getty)
John Travolta kisses Olivia Newton-John in a scene from the film 'Two Of A Kind', 1983. (Photo by 20th Century-Fox/Getty Images) (2012 Getty Images)
John Travolta and Olivia Newton-John perform during Paramount Home Entertainment Celebrates DVD Releases Of 6 All-Time Musical Favorites - Inside and Show at Paramount Studios in Hollywood, California, United States. (Photo by M. Caulfield/WireImage) (Getty)
MELBOURNE, AUSTRALIA - NOVEMBER 02: Olivia Newton-John and her husband John Easterling pose after participating in the Emirates Melbourne Cup Parade in Federation Square on November 2, 2009 in Melbourne, Australia. (Photo by Hannah Mason/WireImage) (Getty)
LAS VEGAS, NV - AUGUST 09: Olivia Newton-John unveils her Madame Tussauds Hollywood wax figure at the Flamingo Las Vegas on August 9, 2014 in Las Vegas, Nevada. (Photo by Mindy Small/FilmMagic) (Getty)
SAO PAULO, BRAZIL - MARCH 03: Olivia Newton-John performs live on stage on March 3, 2016 in Sao Paulo, Brazil. (Photo by Mauricio Santana/Getty Images) (Getty)
BEVERLY HILLS, CA - AUGUST 15: Olivia Newton-John (L) and John Travolta attend the "Grease" 40th anniversary screening at Samuel Goldwyn Theater on August 15, 2018 in Beverly Hills, California. (Photo by Jon Kopaloff/FilmMagic) (Getty)
LOS ANGELES, CALIFORNIA - AUGUST 14: Olivia Newton-John attends the 2019 Industry Dance Awards at Avalon Hollywood on August 14, 2019 in Los Angeles, California. (Photo by Rachel Luna/FilmMagic) (Getty)
MELBOURNE, AUSTRALIA - OCTOBER 06: Olivia Newton John attends the Olivia Newton-John Wellness Walk and Research Run on October 06, 2019 in Melbourne, Australia. The event helps fund cancer research and provide access to world-leading wellness and support care programs for patients within the ONJ Centre. (Photo by Sam Tabone/WireImage) (Getty)