Glen Campbell has Alzheimer's

US country music veteran Glen Campbell, famous for hits like "Rhinestone Cowboy," has Alzheimer's disease, the singer announced. In an interview with People magazine, the 75-year-old and his wife Kim said they decided to go public because he plans a final series of concerts later this year and wants fans to know his condition. "Glen is still an awesome guitar player and singer," she said. "But if he flubs a lyric or gets confused on stage, I wouldn’t want people to think, 'What's the matter with him? Is he drunk?'" Campbell, whose other hits include "Gentle on my Mind," said he has suffered for years from short-term memory loss, but was diagnosed with Alzheimer's six months ago. "I still love making music, and I still love performing for my fans," he said, adding: "I'd like to thank them for sticking with me through thick and thin." An estimated 18 million people worldwide suffer from Alzheimer's, the most common form of dementia.