Louis Armstrong is widely known as the greatest jazz musician of the twentieth century.�He was a�phenomenally gifted and imaginative artist, and an entertainer so irresistibly magnetic that he knocked the Beatles off the top of the charts four decades after he cut his first record. Offstage he was witty, introspective, and unexpectedly complex, a beloved colleague with an explosive temper whose larger-than-life personality was tougher and more sharp-edged than his worshiping fans ever knew.