Glen Campbell's wife Kim Woolen has revealed that the musician still loves to laugh despite losing his language skills after suffering from Alzheimer's disease.
The 78-year-old musician embarked on a tour with more than 150 dates even after getting diagnosed with Alzheimer's disease in 2011, People Magazine reported.
The American country singer's new documentary 'Glen Campbell: I'll Be Me' will get a look at what went on behind the scenes as the performer's mind degenerated.
Campbell's wife Woolen, who also features on the documentary, said that Campbell was still "really healthy" physically, but had lost most of his language skills but what he hasn't lost was his ever-present sense of humor.