Hi 'regret'.
I saw JOK live many times. I used to get all dressed up and sneak into clubs underage every chance I got.
He truly did have a stage presence that was magic. The croud would be 'thunderous' banging, stamping and shouting 'J.O.K.!' I usually had no voice the day after a concert!
They were happy times watching the king. Words cannot really describe the difference between seeing him on film, or his records compared with being with him live!