Olivia Newton-John, the angelic Australian singer who forged a hopelessly devoted following with her chart-topping hits “Physical,” “Have You Never Been Mellow” and “You’re the One That I Want,” her Grease duet with John Travolta, died last August. She was 73.

Newton-John died at her ranch in Southern California. Her husband, John Easterling, announced on Facebook.

“Olivia has been a symbol of triumphs and hope for over 30 years sharing her journey with breast cancer,” he wrote. “Her healing inspiration and pioneering experience with plant medicine continues with the Olivia Newton-John Foundation Fund, dedicated to researching plant medicine and cancer.” 

Newton-John was first diagnosed with breast cancer in 1992, and she announced in May 2017 that after 25 years in remission the disease had spread to her lower back.

A country-pop and soft-rock sensation in the 1970s and ’80s, Newton-John sold more than 100 million albums and had nearly 40 entries on the Billboard Hot 100 during her five decades in music.

A posthumous album compiling the late, Newton-John’s all-star duets is out now.

Just the Two of Us — The Duets Collection Volume One, features duet partners including Dolly Parton, Mariah Carey, Richard Marx, Michael McDonald, Barry Gibb, John Travolta, Jon Secada and Olivia’s daughter, Chloe Lattanzi.

Here’s the track listing for the album:

“Suddenly” (Featuring Cliff Richard)
“Jolene” (Featuring Dolly Parton) 
“Act Of Faith” (Featuring Michael McDonald)
“Window In The Wall” (Featuring Chloe Lattanzi) 
“Take A Chance” (Featuring John Travolta) 
“Face To Face” (Featuring Barry Gibb)
“I Honestly Love You” (Featuring Jim Brickman)
“The Best Of Me” (Featuring David Foster)
“True To Yourself” (Featuring Vanessa Amorosi)
“Lost Inside Your Heart” (Featuring Jon Secada) 
“I’ll Come Runnin’” (Featuring Tina Arena)
“Never Far Away” (Featuring Richard Marx)
“How Can You Mend A Broken Heart” (Featuring Kelly Lang)
“Stone In My Pocket” (Featuring Amy Sky & Nielsen Chapman)
“Love Is A Gift” (Featuring Delta Goodrem)
“Hopelessly Devoted To You (Live)” (Featuring Mariah Carey)

And…

“Put Your Head On My Shoulder” (Featuring Paul Anka)