Because Joe Glaser became his manager in 1935.
Joe Glaser was had been on Al Capone’s payroll and ran the Sunset Cafe in the 1920s,
where Louis had been the headliner.
Louis would always remain hat-in-hand with Glaser.
Glaser landed Louis a deal with Decca Records.
Decca recordings had established him as ‘King of Jazz’.
His performance were converted old jazz style into popular music.
Louis’ style and spirit also became a populist model.