Known for a string of 1970’s hits, most notably her Grammy Award winning “I Am Woman,” Singer Helen Reddy has died. Confirmed by her children Traci and Jordan, the Australian native passed on September 29th at the age of 78.

Best recognized for her feminist-leaning repertoire including “Ain’t No Way To Treat a Lady,” “Delta Dawn,” “Angie Baby,” and “You and Me Against the World,” Reddy is also immortalized in a modern American history high-school textbook. “My name and my lyrics (were) in the book,” she told the AP. “And I thought, ‘Well, I’m part of history now. And how do I top that? I can’t top that.'”

In addition to her international #1 single “I Am Woman” Reddy was heralded as a celebrity feminist: one of a small group of women, including Gloria Steinem and Germaine Greer, whose high profile and media savvy helped communicate feminist ideas to wide audiences.

Originally labeled a Jazz artist, Reddy altered her sound after winning a contest that brought her to the United States and in her retirement, she returned to Australia and earned a degree in clinical hypnotherapy.

“She was a wonderful Mother, Grandmother and a truly formidable woman,” said her kids in a message. “Our hearts are broken. But we take comfort in the knowledge that her voice will live on forever.”

Listen to some of Helen Reddy’s biggest hits below.

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Photo (Cropped): Mgersh