Before his appearance at the 1957 Newport Jazz Festival, Louis Armstrong learned that the promoters planned to shunt aside his regular band in favor of a group of his historical associates. Never a pushover and always protective of his sidemen, Armstrong threw a major temper tantrum that resulted in his regular show going on as usual. No hint of the turmoil can be heard during this swinging concert appearance, which features the trumpeter, trombonist Trummy Young, and clarinetist Edmond Hall romping through their usual program, highlighted by “Now You Has Jazz” (from the movie High Society), “Mahogany Hall Stomp,” some individual features, and Armstrong’s recent hit “Mack the Knife.” – Scott Yanow