I get the sense that this was a special night a bit separate from the regular performances and was a tribute to Louis Armstrong of sorts. This appears to be the end of the show, and it's Mahalia Jackson singing perhaps her signature song, "Just a Closer Walk With Thee," and boy, howdy does she wail up a store. (I especially love it because she was one of my grandmother's favorite singers. As you might imagine, my grandmother was not particularly big on gospel, but when Mahalia Jackson was on TV, Grandma Rose just was overjoyed.)
And then, to make things better, Louis Armstrong joins her for a duet on the number.
And despite the title of this video saying that that's all it is -- which is plenty enough -- it's not. Because we then get the big finale. And we get "When the Saints Go Marching In". But no, that's not enough, because they follow it with "Mack the Knife."
And when I say, "they," that's part of the treat, as well, because Satchmo and Mahalia Jackson are joined on stage by the great Preservation Hall Jazz Band. And among them is the legendary Percy Humphrey, who you'll see on the right side of the screen in a ribbon, playing the trumpet.
All in all, quite the rousing joy.