Whether called Dixieland, traditional jazz or New Orleans jazz, it is the happiest music in the world, a music that exudes joy and found its perfect symbol and world ambassador in Louis Armstrong. Originating out of the south (particularly New Orleans), the style in its various forms was a major force in the 1920s. While overshadowed by swing in the 1930s, Dixieland made a comeback in the early 1940s with Lu Watters Yerba Buena Jazz Band being one of the first revival bands. Whether played by veterans such as Bunk Johnson and Kid Ory or newcomers of the time such as Pete Fountain and the Dukes of Dixieland, the music has been a permanent part of the jazz landscape ever since.