Neil Diamond
The Sweet Caroline hitmaker announced in 2018 that he would stop touring after being diagnosed with Parkinson's, something that left him in denial "for the first year or two".
The 85-year-old singer told CBS Sunday Morning in 2023: "When the doctor told me what it was, I was just not ready to accept it.
"I said, 'Oh, OK, I'll see you whenever you want to see me, but I have work to do, so I'll see you later."