The Rat Pack (with Johnny Carson) — The Birth of the Blues.  From the Youtube description:

The Rat Pack live at the “Kiel Opera House”, St. Louis – June 20, 1965. Only known filmed “The Rat Pack” concert from the 1960s.  Frank Sinatra, Dean Martin, Sammy Davis Jr. and Johnny Carson (subbing for Joey Bishop who was out with a bad back). With the Count Basie and Quincy Jones bands.

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