It was years ago, Col, but I had the pleasure of chatting with a well-known recording artist as well.
The gentleman in question was Charlie Rich, "The Silver Fox" (as he was called). He was mostly a country-western singer but had some hits on the rock-n-roll charts. At the time I met him, he was riding the "hit power" of the song "Mohair Sam."
We met after the cast party following a concert headlined by Sonny and Cher. I played organ in the back-up (stage) band. I had a chance to be waved at by Sonny and to be snarled at by Cher, but that was OK by me. I just sat down trying to look inconspicuous. Charlie came over looking for a place to sit - which happened by chance to be next to me 'cause the sofas were already crowded.
He and I talked about careers as a musician. In fact he was partly responsible for me NOT being a professional musician. At the time I was at a crossroads and could have gotten a job as a touring artist for the Lowrey Organ Company, but my grades were good enough for grad school. Charlie explained to me the actual meaning of that country music phrase "My bus license plate is my address." He was a real gentleman and took the time to explain to me about his life for the ten years before his first hit, living from paycheck to paycheck and hoping the bus would make one more stop before it needed fixing. Because of Charlie Rich, I decided to go for grad school and that was how I became "Doc" with a PhD in Analytical Chemistry.
So I agree that sometimes the famous folks are just regular people if you can catch them in a good situation.