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Olivia Newton-John, wearing a fur hat and jacket, outside the Savoy Hotel in London, circa 1970.
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Newton-John, with her castmates Benny Thomas and Vic Cooper from the 1970 sci-fi musical film "Toomorrow," pictured in Soho Square, London in July 1970 in a dainty outfit with statement '70s sleeves.
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Newton-John with her "Grease" co-star John Travolta styled in looks inspired by their characters at the film's 1978 premiere.
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Newton-John performs on the British TV show "Top of the Pops" in striped jumpsuit.
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Newton-John in a classic headband and high-waisted leotard combo while filming the music video for her seminal 1981 hit "Physical."
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A '70s embroidered blouse and red wide-leg trousers make up Newton-John's look during a "Top of the Pops" appearance.
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Newton-John in an all-violet number during a performance circa 1970.
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Newton-John performs on the British TV show "Moods of Love" in July 1974.
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Newton-John films the music video for her single "Follow Me" -- from her fifth studio album "Have You Never Been Mellow" -- in 1975.
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Newton-John poses with a wooden rocking horse in a luminous dress for a promotional photo for the 1976 ABC broadcast "A Special Olivia Newton-John."
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Newton-John in a Spanish matador-themed look during a performance at the 1982 American Music Awards.
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Newton-John attends a 1978 press conference in London in a Sandy-inspired leather jacket.
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Newton-John at the "Grease" premier party on at Studio 54 in New York in 1978.
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Newton-John receiving an OBE (Officer of the Order of the British Empire) at Buckingham Palace in London in 1979.
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Newton-John and her first husband Matt Lattanzi wear matching tuxedos during the American Film Institute's presentation of a Lifetime Achievement award to Fred Astaire in Los Angeles in 1981.
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Newton-John and Lionel Richie pose together at the 1983 Grammy Awards.
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Newton-John in a heavily embellished top and crimped hair at a dinner with former husband Matt Lattanzi Switzerland in 1984.
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Newton-John in a black cocktail dress in London in 1983.
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Newton-John and her then-husband Matt Lattanzi on the red carpet for the Academy Awards in in 1989.
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Newton-John poses in a striking headpiece for a day at the races in Melbourne in 2009 where she also performed.
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Newton-John poses in signature leather with a group of Las Vegas entertainers during an event to celebrate the opening of her residency at the Flamingo hotel in Las Vegas in 2014.
CNN  — 

The enduring image of Olivia Newton-John may always be one of permed hair, bare shoulders and black spandex on the set of “Grease”. But the late actress and singer, who died Monday aged 73, was a fashion icon before – and long after – the blockbuster musical.

Emerging in the early 1970s with a string of hit singles, Newton-John came to typify the decade’s anything-goes fashion. She put a glamorous spin on the bohemian aesthetic, seemingly as comfortable in sparkling bodysuits and evening gowns as she was in bell-bottoms and miniskirts.

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Olivia Newton-John at a press call for "Grease" in London in 1978.

Her turn in “Grease” heralded a throwback to the leather-clad 1950s but, off-screen, Newton-John was already ahead of the ’80s curve. Opting for shorter hair and bright colors, she also helped establish the era’s activewear trend (while cementing headbands as one its hottest accessories) with her unforgettable music video for 1981’s “Physical.”

In the decades that followed, Newton-John continued to epitomize understated elegance, whether at Hollywood awards, premieres or film festivals. Yet, she was never afraid to bring out a nostalgic pair of skin-tight black pants or a leather jacket in honor of the movie that made her a global star.

Swipe through the gallery above for Olivia Newto-John’s style highlights.