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. Almost fifty years after her death, it's difficult to believe that prior to her emergence, jazz and pop singers were tied to the Tin Pan Alley tradition and rarely personalized their songs; only blues singers like Bessie Smith and Ma Rainey actually gave the impression they had lived through what they were singing. 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. She made clear her debts to Bessie Smith and Louis Armstrong (in her autobiography she admitted, "I always wanted Bessie's big sound and Pops' feeling"), but in truth her style was virtually her own, quite a shock in an age of interchangeable crooners and band singers.