In 1929, the Cotton Club Orchestra appeared on stage for several months in Florenz Ziegfeld's Show Girl, along with vaudeville stars Jimmy Durante, Eddie Foy, Jr., Ruby Keeler, and with music and lyrics by George Gershwin and Gus Kahn. Will Vodery, Ziegfeld's musical supervisor, recommended Ellington for the show, and, according to John Hasse's "Beyond Category: The Life and Genius of Duke Ellington", "Perhaps during the run of Show Girl, Ellington received what he later termed 'valuable lessons in orchestration’ from Will Vodery.” In his 1946 biography, "Duke Ellington", Barry Ulanov wrote: