The swing era brought to swing music Louis Armstrong, Billie Holiday, and by 1938 Ella Fitzgerald. Armstrong, who had heavily influenced jazz as its greatest soloist in the 1920s when working with both small bands and larger ones, now appeared only with big swing bands. Other musicians who rose during this time include Jimmy Dorsey, his brother Tommy Dorsey, Glenn Miller, Count Basie, Goodman's future rival Artie Shaw, and Woody Herman, who departed the Isham Jones band in 1936 to start his own band. Several factors led to the demise of the swing era: the 1942–44 musicians' strike from August 1942 to November 1944 (The union that most jazz musicians belong to told its members not to record until the record companies agreed to pay them each time their music was played on the radio), the earlier ban of ASCAP songs from radio stations, World War II which made it harder for bands to travel around as well as the "cabaret tax", which was as high as 30%, the rise of vocalist-centered pop and R&B as the dominant forms of popular music, and the rising interest in bebop among jazz musicians. Though some big bands survived through the late 1940s (Duke Ellington, Count Basie, Stan Kenton, Boyd Raeburn, Woody Herman), most of their competitors were forced to disband, bringing the swing era to a close. Big-band jazz would experience a resurgence starting in the mid-1950s, but it would never attain the same popularity as it had during the swing era.