section_path: Music/Vocal popularity
section_name: Vocal popularity
paragraph_text: Vocal popularity
  
  As Armstrong's music progressed and popularity grew, his singing also became very important. Armstrong was not the first to record scat singing, but he was masterful at it and helped popularize it with the first recording on which he scatted, " Heebie Jeebies." At a recording session for Okeh Records, when the sheet music supposedly fell on the floor, and the music began before Armstrong could pick up the pages, he simply started singing nonsense syllables while Okeh President E.A. Fearn, who was at the session, kept telling him to continue. Armstrong did, thinking the track would be discarded, but that was the version that was pressed to disc, sold, and became an unexpected hit. Although the story was thought to be apocryphal, Armstrong himself confirmed it in at least one interview as well as in his memoirs. On a later recording, Armstrong also sang out "I done forgot the words" in the middle of recording "I'm A Ding Dong Daddy From Dumas."
  
  Such records were hits, and scat singing became a major part of his performances. Long before this, Armstrong was playing around with his vocals, shortening and lengthening phrases, interjecting improvisations, and using his voice as creatively as his trumpet. Armstrong once told Cab Calloway that his scat style was derived "from the Jews rockin ", an Orthodox Jewish style of chanting during prayer.