Louis Armstrong revolutionized jazz and popular music through his distinctive trumpet playing and gravelly, expressive vocals. A New Orleans native who rose to international fame in the 1920s and beyond, Armstrong became one of the most influential musicians in American history, breaking musical and social barriers while establishing the solo improviser as a central figure in jazz. His infectious energy and innovative approach to phrasing shaped multiple generations of performers across all genres.
George Gershwin and Ira Gershwin composed "I Got Rhythm" in 1930 for the musical "Girl Crazy," and the song quickly became a jazz standard. Armstrong's recording helped cement the tune as a jazz classic, and the chord changes ("rhythm changes") became foundational material for countless improvisations and compositions in jazz education and performance.