Country Singer Glen Campbell: I Have Alzheimer's

6/22/2011 11:08 AM PDT BY TMZ STAFF
Country singer Glen Campbell -- famous for his hit "Rhinestone Cowboy" -- revealed in an recent interview he's battling Alzheimer's Disease.

Glen Campbell

The 75-year-old Grammy winner confirmed the diagnosis to -- saying he plans to schedule his final live performances this fall ... to say "farewell" to his fans.

Campbell adds -- "I still love making music. And I still love performing for my fans. I'd like to thank them for sticking with me through thick and thin."