Crosby began singing in the early 1930s with the Rhythm Boys, which included vocalist Ray Hendricks and guitarist Bill Pollard, and with Anson Weeks (1931–1934) and the Dorsey Brothers (1934–35). He led his first band in 1935 when the former members of Ben Pollack's band elected him their titular leader. In 1935 he recorded with the Clark Randall Orchestra led by Gil Rodin and featuring singer Frank Tennille (a.k.a. Clark Randall). Glenn Miller was a member of that orchestra, which recorded the Glenn Miller novelty composition "When Icky Morgan Plays the Organ" in 1935. Crosby's "band-within-the-band," the Bob-Cats, was a dixieland octet with soloists from the larger orchestra, many from New Orleans. The band included at various times Ray Bauduc, Yank Lawson, Billy Butterfield, Charlie Spivak, Muggsy Spanier, Irving Fazola, Nappy Lamare, Jack Sperling, Joe Sullivan, Jess Stacy, Bob Haggart, Walt Yoder, and Bob Zurke.