Andy Johns Dead: Music Engineer And Producer Dies At 61

Veteran music engineer and producer Andy Johns died in Los Angeles over the weekend. He was 61.

During his illustrious career, Johns -- whose brother and nephew, respectively, are fellow producers Glyn Johns and Ethan Johns -- worked on such classic albums as Led Zeppelin's "II," the Rolling Stones' "Sticky Fingers" and Joni Mitchell's "Shadows and Light," Variety.com reports.

According to CNN, Johns was hospitalized late last month. The cause of his death is still unknown.

Born in Surrey, England, Johns began his decades-long career as a tape operator at the famed Olympic Studios in London, where he worked on sessions for the Jimi Hendrix Experience's "Axis: Bold as Love."

"In those days you could go into one studio and Joe Cocker was working, and then you're working with Jimi Hendrix in Studio One, or down the corridor Eric Clapton is doing something," Johns once said of his early Olympic Studios days, according to Billboard. "It was a serious center. A lot of talent was there."

According to the Guardian, Johns was "one of the most sought after and admired producers in rock music" for the next 40 years.

This week, many in the music industry have taken to social media to celebrate Johns' life and express their grief at his sudden passing.

L.A. Guns founder Tracii Guns posted a tribute to Johns on his Facebook page Monday.

“There is something intangible that makes a recording magical,” Guns wrote. “Andy Johns in many cases was the intangible ingredient.”