Louis Armstrong was a character of epic proportions - married four times, with countless romantic involvements in and around his marriages, a life-long advocate of marijuana, who took his music from the streets of New Orleans to Hollywood, Europe, South America and, through his many recordings, the world. Armstrong was born to the sixteen-year-old daughter of a slave, who took to prostitution to support herself and her child. He spent time in reform school (where he first learned to play the bugle) and for a while earned his living as a pimp before starting to play jazz in the red-light district of New Orleans. Armstrong fought against prejudice, the depression and the gangster-run music business of Chicago to become one of the most prominent black men of his generation and one of the most successful jazz musicians of all time. Laurence Bergreen tells his story.