This might be the first time Sammy Davis Jr. has ever been mentioned on this thread. That's because he's an entertainer as opposed to being specifically a jazz singer.
Just like everyone else, I saw Sammy on TV many times, and I liked him but was not overwhelmed. It was not until I saw Sammy in the flesh was I impressed beyond belief.
A friend of mine called and told me he had two tickets to see Sammy at the Kiel Auditorium, and if I supplied the transportation, he would supply the rest.
The first thing that impressed me when we arrived at the auditorium was the fact that it was packed to capacity. (I didn't know that Sammy had that kind of drawing power) After the show opened, I discovered why he had that kind of drawing power; how could one person (with orchestra) keep an auditorium full of people mesmerized from the beginning till the end of his show; he must have been the worlds greatest entertainer ever, the man sang, danced, told jokes, and made hours pass like minutes.
https://www.youtube.com/watch?v=8uFA6Gh_wsw