While she willingly auctioned the jacket off as part of 500 personal belongings to benefit the Olivia Newton-John Cancer and Wellness Center in Melbourne, the buyer (who purchased the jacket for double the asking price) decided to give it back to Olivia.
It's fair to say Olivia was shocked by the generosity of the buyer.
"It should not sit in a billionaire's closet for country club bragging rights," the anonymous buyer told Newton-John, according to Mirror UK.
"The odds of beating a recurring cancer using the newest emerging therapies is 1,000-fold greater than someone appearing out of the blue, buying your most famous and cherished icon, and returning it to you," the buyer told the actress.
The jacket and the matching black pants worn by Olivia for her 'You're the One That I Want' duet in the movie were sold to separate buyers at the auction last month, both fetching more than double the expected price.
The buyer of the jacket called himself the singer's "No. 1 fan" and wished Newton-John "God speed for a quick recovery."
Olivia has revealed she will put the jacket on display at her Melbourne cancer centre.
"That is the most incredibly generous thing to do for me," she told him. "I am so grateful, and I am just blown away."