Legendary musician Joe Cocker dead at age 70

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(CNN) — Joe Cocker, the British blues-rock singer whose raspy voice brought plaintive soul to such hits as “You Are So Beautiful” and the duet “Up Where We Belong,” has died of an undisclosed illness. He was 70.

Cocker’s performing career spanned almost 50 years, from Woodstock, where he sang the Beatles’ “With a Little Help From My Friends,” to the digital-music era. He had tour dates scheduled well into 2015.

**Musicians are sending their condolences on social media. See some of them below**

Cocker began as a singer in England at the same time as the Beatles, with whom he was often linked. He had a major success in the early 1970s with “Mad Dogs and Englishmen,” a live album and documentary film.

“Up Where We Belong,” his duet with Jennifer Warnes from the movie “An Officer and a Gentleman,” was Cocker’s biggest U.S. hit, topping the Billboard singles charts in 1982.

The singer told the Daily Mail in 2013 that by the 1970s his descent into drugs and alcohol had become so severe that he sometimes forgot the lyrics to songs.

“If I’d been stronger mentally, I could have turned away from temptation,” Cocker said. “But there was no rehab back in those days. Drugs were readily available, and I dived in head first. And once you get into that downward spiral, it’s hard to pull out of it. It took me years to get straight.”

He credited his wife, Pam, with helping him get sober.

“It was Pam who helped me get myself back together,” he said. “She made me think positively. I was very down on myself. She made me realize people still wanted to hear me sing, and convinced me I could escape the downward spiral.”

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