Who was the first black musician to gain widespread popularity in jazz music?

Louis Armstrong is recognized as the first black musician to gain widespread popularity in jazz music due to his groundbreaking contributions as a trumpeter, vocalist, and bandleader. His unique voice and innovative playing style helped to elevate jazz to a mainstream genre in the 1920s and 1930s. Armstrong's charisma and talent allowed him to transcend racial barriers at a time when the music industry was still heavily segregated, making him one of the first African American artists to achieve significant fame and commercial success.

His work, particularly during the "Jazz Age" of the 1920s, played a pivotal role in popularizing jazz both in the United States and internationally. Tracks like "West End Blues" showcased his virtuosic trumpet playing and theatrical vocal style, which captivated audiences and influenced countless musicians who followed. Armstrong's impact set a precedent for future black artists in jazz, making him a central figure in the genre's history.