"So that was really a reason to do it, there was a cause behind it and a purpose," Newton-John said.
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The proceeds from the album are split between Newton-John's cancer and wellness center and the Jett Travolta Foundation, a nonprofit that helps children with special needs, and was named in honor of John Travolta's son, Jett, who died in 2009.
Newton-John also works with her husband John "Amazon John" Easterling, who is owner and founder of Amazon Herb Co. They spread the word about the importance of preserving the rainforest, and help the indigenous people of the Amazon get clean water to gain ownership and title to their land.
How does she balance her performing and activism? "I have a juggling career also," she joked. But added, "It all seems to fall into place for me. I set aside a certain amount of time if I'm going to do singing, and then I work the other things around it."
At 64, though, she said she might cut back on her touring schedule.
"(My priorities are) my work with my hospital and my work with my husband with the Amazon, and my retreat spa," she said. "These things really take priority to me because they are about healing and health and so I kind of work my career around those things now. So that is really kind of my priority, but I still love to perform. But after this year, I probably won't do as much of that."
Olivia Newton-John has been performing for more than 40 years. She will sing hits from throughout her career Saturday, Feb. 23, at H. Ric Luhrs Performing Arts Center at Shippensburg University in Shippensburg, Pa.
If you go ...
WHO: "An Evening with Olivia Newton-John"
WHEN: 8 p.m. Saturday, Feb. 23
WHERE: H. Ric Luhrs Performing Arts Center at Shippensburg University, 1871 Old Main Drive, Shippensburg, Pa.
Cost: Tickets cost $39 to $59
Contact: Call 717-477-7469 or go to luhrscenter.com
More: Olivia Newton-John is online at www.olivianewtonjohn.com and on Twitter @OliviaNJ and Facebook @OliviaNewtonJohn.