Armstrong's All-Stars weren't formally established until August 13, 1947. However, the band had already performed and/or recorded several concerts/sessions by then under that name: Louis Armstrong and His All Stars, May 17, 1947, at Town Hall, New York City (recorded by promoter Ernie Anderson; of which only 6 songs were initially released, the rest eventually released in full in 1983 by RCA France); Louis Armstrong and His All Stars, June 10, 1947 (4-track single, studio recording, Victor); and possibly NBC Radio Broadcast Transcription (radio), New York, NY; June 19, 1947, Winter Garden Theatre, New York City.
Louis Armstrong (August 4, 1901 – July 6, 1971), nicknamed Satchmo or Pops, was an American jazz trumpeter, singer, and an influential figure in jazz music.
Coming to prominence in the 1920s as an "inventive" trumpet and cornet player, Armstrong was a foundational influence in jazz, shifting the focus of the music from collective improvisation to solo performance. With his instantly recognizable gravelly voice, Armstrong was also an influential singer, demonstrating great dexterity as an improviser, bending the lyrics and melody of a song for expressive purposes. He was also skilled at scat singing (vocalizing using sounds and syllables instead of actual lyrics).
Renowned for his charismatic stage presence and voice almost as much as for his trumpet-playing, Armstrong's influence extends well beyond jazz music, and by the end of his career in the 1960s, he was widely regarded as a profound influence on popular music in general. Armstrong was one of the first truly popular African-American entertainers to "cross over", whose skin color was secondary to his music in an America that was severely racially divided. He rarely publicly politicized his race, often to the dismay of fellow African-Americans, but took a well-publicized stand for desegregation during the Little Rock Crisis. His artistry and personality allowed him socially acceptable access to the upper echelons of American society that were highly restricted for men of color.