Lady Day.
"The first popular jazz singer to move audiences with the intense, personal feeling of classic blues, Billie Holiday changed the art of American pop vocals forever. Billie Holiday's highly stylized reading of this blues tradition revolutionized traditional pop, ripping the decades-long tradition of song plugging in two by refusing to compromise her artistry for either the song or the band."
John Bush, Allmusic.com
Holiday was discovered by producer John Hammond at the age of 18. In 1933, she cut her first record and Hammond organized her first commercial recording session with Benny Goodman.