Campbell was diagnosed with Alzheimer’s disease in June 2011. The Grammy-winner, whose “Rhinestone Cowboy” topped the charts in 1975, had been suffering from short-term memory loss for years, but the Alzheimer’s diagnosis was confirmed in early 2011.
Living full-time at a Nashville memory-care facility located minutes from the Campbell’s home, Glen was cared for by a family friend and personal sitter named Brody along with his main caregiver and wife Kim Woolen, who visited him daily.
“He still has the same essence. He still has the same twinkle in his eye. He has the same chuckle, and he’s still an entertainer,” Woolen told PEOPLE in June 2015 about how Campbell could rarely recognize his loved ones and could no longer play music or carry a conversation.
Campbell’s work of raising awareness of Alzheimer’s was highlighted in his 2015 documentary Glen Campbell: I’ll Be Me, which followed the singer and his family on his 2011 tour as his memory declined.
Universal will be releasing the singer’s final studio album, Adiós, on June 9. The 12-track compilation was recorded in 2012 in Nashville in the middle of his Goodbye Tour. Adiós features Glen singing four Jimmy Webb songs he never recorded but always loved, including the title track. Other songwriters on the album include Roger Miller, Bob Dylan, Dickey Lee, Jerry Reed, Carl Jackson, Fred Neil, and Willie Nelson who duets with Campbell on the poignant single, “Funny How Time Slips Away.”
Campbell is survived by his wife of 35 years Kim, daughters Ashley, Debbie and Kelli and sons Cal, Dylan, Kane, Shannon and Travis.
TMZ was first to report the news.