What type of music genre was Louis Armstrong famous for?

Louis Daniel Armstrong (August 4, 1901 – July 6, 1971), nicknamed "Satchmo", "Satch", and "Pops", was an American trumpeter and vocalist. He is among the most influential figures in jazz. His career spanned five decades and different eras in the history of jazz. Jazz is a music genre that originated in the African-American communities of New Orleans, Louisiana, United States, in the late 19th and early 20th centuries, with its roots in blues and ragtime.

Armstrong was born and raised in New Orleans. 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. He was a jazz trumpeter, bandleader, and singer known for songs like "What a Wonderful World,” “Hello, Dolly,” ”Star Dust” and "La Vie En Rose.”. He was renowned for his charismatic stage presence and voice as well as his trumpet playing.