Fraser had been battling both cancer and AIDS

Andy Fraser, the bass player of classic rock band Free, has died at the age of 62.

Fraser had been battling both cancer and AIDS, but Ultimate Classic Rock reports that the cause of death has not yet been announced. The London-born musician died yesterday (March 16) at home in California.

Fraser was a member of John Mayall’s Bluesbreakers before co-founding Free with Paul Rodgers in 1968 when he was just 15. He co-wrote the band’s 1970 hit ‘All Right Now’ but left the group in 1972 to form Sharks with guitarist Chris Spedding. He then formed the Andy Fraser Band before moving to California and going on to write for artists such as Robert Palmer, Joe Cocker and Rod Stewart.

Blues guitarist Joe Bonamassa paid tribute to Fraser on Twitter, writing: “I am extraordinarily sad to hear of the passing of Andy Fraser. He was one of the greatest and I was proud to call him my friend.” Watch a performance of ‘All Right Now’ above.

In an interview with Glide magazine last December, Fraser spoke about his work with the non-profit organisation Rock Against Trafficking. “It’s one of those things that has to be done,” he commented. “It’s like a mission that you can’t dismiss. Once you know about it, you can’t pretend you don’t know about it and just go on like it’s Disneyland. That is a major, major project that we’re all involved in and I believe it’s going to prove to be very fruitful. We’re going to get governments involved. We’re going to push it in your face, you know.”