I have to disagree with you Morris-ey. An introduction to a song is a welcome addition to most performances. If I want to hear a "damn song" I will listen to the "damn record". I enjoy hearing more in a concert.

I did not get to see live performances from the artists you mentioned other than Sinatra, and yes, I do remember him introducing the songs. I also remember seeing films of the Beatles and yes, they did introduce songs.