The Whoopee John Orchestra, led by John Anthony Wilfahrt, was a prominent polka band in the mid-20th century, known for bringing the traditional sounds of German and Czechoslovakian polka into the American musical landscape. Known for his distinctive accordion playing and his lively band, Whoopee John and his orchestra were a staple at dances, fairs, and on the radio. They recorded over 800 songs, with standout hits like "Clarinet Polka" and "Too Fat Polka". The band's popularity significantly contributed to the widespread acceptance and enjoyment of polka music in the United States during the 1930s and 1940s.