Nobody can or ever will replace Johnny Carson. I tolerate but have never really liked David Letterman. When Leno took the reins of the "Tonight Show", I was grinning and bearing it. I am now bored by both.
My idol, Jon Stewart, is at least topical and funny so he is my new King of Late Night. But, there will always be only one Johnny Carson. A friend of mine found this video on YouTube. I've never heard Carson sing. Now I know why.
This was shot at the Kiel Opera House in St. Louis in 1965. I think it was a charity event. Shades of Mad Men with all the smoking and drinking and who knows what else. They sure had fun.