Andy Fraser, bassist for English rock band Free, has died at the age of 62. Although the cause of death has not been confirmed, Fraser had been living with both AIDS and cancer.

“Andrew McLan Fraser passed away on Monday at his home in California,” reads an official statement. “He leaves behind his daughters Hannah and Jasmine Fraser, and their mother Ri, his sister Gail, brothers Gavin and Alex, and many friends and associates in the industry.”

Fraser was a founding member of Free at just 15 years old, along with Paul Rodgers, Paul Kossoff, and Simon Kirke.  He co-wrote the band’s hit song “All Right Now,” which went to #1 and was awarded a BMI Million-Air Award in 2006 for over 3 million radio and TV plays of the song.

In addition to his work as a member of Free, Fraser had success with Sharks, and John Mayall & the Bluesbreakers. As a songwriter, his work was recorded by Robert Palmer –  including the song “Every Kinda People” – as well as Joe Cocker, Chaka Khan, and Rod Stewart.

Fraser was a strong social and human rights activist.

Free Performs “All Right Now” on UK television in 1970: