Grease star Olivia Newton-John has claimed that she is visited by two dead celebrities who help boost her career.
The actress, who played Sandy in the hit 70s musical, says the ghosts of her deceased famous friends 'hover' around her when she performs, and that they give her guidance and support for each show.
She claims that both Karen Carpenter, the Carpenters singer who died in 1983, and John Denver, the singer-songwriter who died in 1997, are with her on stage every time she performs.
The Daily Star reports that Newton-John talks about her famous spirit guides in her new book Don't Stop Believin'.
Also claiming that she is visited by a friend's daughter who died as a child, she writes: "She has been with me ever since, along with my parents, my sister and other close friends who have passed away, like Karen Carpenter and John Denver.
"I often feel as if they hover around me when I perform. They are my spirit guides who I ask to support me before every show and they keep me strong. They're gone, but their love never dies."
NEW YORK CITY - JUNE 13: Singer Olivia Newton-John and musician Elton John attend the 'Grease' Premiere Party on June 13, 1978 at Studio 54 in New York City. (Photo by Ron Galella/WireImage)
Olivia Newton John (Photo by Tom Wargacki/WireImage)
Singer and actress Olivia Newton-John and co-star John Travolta attend the premiere of the film 'Grease', 1978. (Photo by Michael Ochs Archives/Getty Images)
HOLLYWOOD, CA - 1978: Singer and actress Olivia Newton-John and co-star John Travolta attend their 1978 Hollywood, California, premiere of 'Grease.' Produced by Alan Carr, 'Grease' was one of the hit films of 1978. (Photo by George Rose/Getty Images)
Olivia Newton John and John Travolta (Photo by Ron Galella/WireImage)
1978: Olivia Newton-John and John Travolta in Randal Kleiser's musical 'Grease' about high school life and growing up in the 1950's. (Photo by Evening Standard/Getty Images)
Olivia Newton John and guests (Photo by Ron Galella/WireImage)
Olivia Newton-John and John Travolta in a scene from the film 'Grease', 1978. (Photo by Paramount/Getty Images)
Actress Olivia Newton-John attends the premiere party for 'Grease' on June 13, 1978 at Studio 54 in New York City.
1978: Australian singer and actor Olivia Newton-John and American actor John Travolta dance in a crowded high school gym in a still from the film, 'Grease,' directed by Randal Kleiser. (Photo by Paramount Pictures/Fotos International/Getty Images)
Actresses and co-stars Stockard Channing, left, and Olivia Newton-John ready themselves for their roles in the movie version of "Grease," in Los Angeles, Aug. 30, 1977. Ms. Channing and Ms. Newton-John star with John Travolta in the film. (AP Photo/Nick Ut)
Olivia Newton-John Matt Lattanzi 1982 Photo By John Barrett/PHOTOlink.net / MediaPunch /IPX
Swedish pop group ABBA are pictured during rehearsals for the "Olivia! TV Special," with fellow pop stars Olivia Newton-John, right and Andy Gibb, background left, May 1, 1978. From left: Benny Andersson, Andy Gibb, Anni-Frid Lyngstad, unidentified, Agnetha Faltskog, Bjorn Ulvaeus, and Olivia Newton-John. (AP Photo/George Brich)
Olivia Newton John 1978 Photo By John Barrett/PHOTOlink.net / MediaPunch /IPX
Australian singer-actress Olivia Newton-John is photographed on Jan. 21, 1982 in Los Angeles, California. (AP Photo/Reed Saxon)
Olivia Newton-John headshot, singer, photo
Olivia Newton-John sings at her "Greatest Hits Live" concert in Hong Kong August 18, 2000. The 51-year-old singer will perform with Australian singer John Farnham at the opening ceremony of the Sydney 2000 Olympic Games in September.
Actor Pierce Brosnan and companion, Keely Shaye Smith (L) pose with singer Olivia Newton-John as they arrive for the 10th annual Environmental Media Awards December 6, 2000 in Santa Monica. Brosnan and Smith were honored with the Ongoing Commitment award and Newton-John received the International Environment Award at the event which recognizes members of the entertainment industry that have expressed concern for the environment through their work.
CAPTION CORRECTION ADDING DATE Actor John Travolta and Australian
singer Olivia Newton-John perform a song from their musical film
"Grease" during a party at Paramount studios September24, 2002 in
Hollywood celebrating the DVD release of six classic musical films
including "Grease," "Saturday Night Fever," "Flashdance," and
"Footloose." This is the first time they performed songs from "Grease"
since 1982. REUTERS/Fred Prouser
Australian pop star Olivia Newton-John poses for photographers at a
news conference in Tokyo April 1, 2003. Olivia Newton-John is in Japan
for her first concert tour here in 25 years. REUTERS/Eriko Sugita
Australian veteran pop singer Olivia Newton-John sings at a concert in
Tokyo April 4, 2003. Olivia Newton-John is now in Japan for a concert
tour. REUTERS/Kimimasa Mayama
Singer Olivia Newton-John arrives at the Westin Hotel in Sydney for the Australian Red Cross 90th Anniversary Gala dinner. Singer Olivia Newton-John arrives at the Westin Hotel in Sydney for the Australian Red Cross 90th Anniversary Gala dinner March 2, 2005 at which Danish Crown Prince Frederik and his wife Princess Mary are also attending. REUTERS/Paul Miller/Pool
Singer Olivia Newton-John arrives for the 39th Annual Country Music Awards in New York November 15, 2005. REUTERS/Mario Anzuoni
Singer Olivia Newton-John arrives with British recording artist Cliff Richard at the 39th Annual Country Music Awards in New York, November 15, 2005. REUTERS/Mario Anzuoni
Australian singer and actress Olivia Newton-John (R) poses with actor John Travolta and his wife, actress Kelly Preston, as they arrive at the Penfolds Icon Gala Dinner during G' Day LA Australia Week 2006 in Hollywood January 14, 2006. Travolta, who starred with Newton-John in the 1978 movie "Grease", will present her with the Lifetime Achievement award at the gala. REUTERS/Fred Prouser
Actor John Travolta (L) and actress Olivia Newton-John pose for photographers at the Australia.com black tie gala in Los Angeles January 19, 2008. REUTERS/Phil McCarten (UNITED STATES)
Singer and actress Olivia Newton-John jokes with the media at the Jinshanling section of the Great Wall in Hebei province, April 7, 2008 at the start of the "Great Walk to Beijing" which she initiated to raise funds to build the Olivia Newton-John Cancer Centre in Melbourne Australia. International stars and cancer survivors will walk 228 km (142 miles) along the Great Wall of China for 23 days. REUTERS/Reinhard Krause (CHINA)
Actor John Travolta and actress Olivia Newton-John attend the G'Day USA 2010 Los Angeles gala in Hollywood, California January 16, 2010. The evening honors high profile individuals for their achievements and for excellence in promoting Australia in the United States. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT)
Olivia Newton-John presents the worldwide artist award to Taylor Swift, who is not in attendance, during the 4th annual American Country Awards in Las Vegas, Nevada December 10, 2013. REUTERS/Lucy Nicholson (UNITED STATES - Tags: ENTERTAINMENT)
Actress Olivia Newton-John arrives at the 50th Annual Country Music Association Awards in Nashville, Tennessee, U.S., November 2, 2016. REUTERS/Jamie Gilliam
Cast members John Travolta and Olivia Newton-John pose at a 40th anniversary screening of "Grease" at the Academy of Motion Picture Arts and Sciences in Beverly Hills, California, U.S., August 15, 2018. REUTERS/Mario Anzuoni
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The musical star also writes about the tough time she had when Karen Carpenter died of heart failure following her struggle with the eating disorder anorexia.
"It was as if the sky fell to Earth. My stomach hit the ground," she said, having learned of her friend's death while listening to the radio in the car.
Newton-John is fighting cancer for the third time in three decades, having announced that smaller tumour had been found in her lower back last year.
Olivia Newton-John is fighting cancer for the third time in three decades
The 70-year-old said that she'd decided to treat herself with medicinal marijuana and other natural remedies.
The Australian singer-actress had previously fought off breast cancer in 1992, but revealed that it had returned in 2013.