Billie Holiday, born Eleanora Fagan on April 7, 1915, in Philadelphia, Pennsylvania, was an iconic American jazz and swing singer. Known as “Lady Day,” Holiday’s vocal style was deeply influenced by jazz instrumentalists, allowing her to manipulate phrasing and tempo uniquely. She began singing in Harlem nightclubs, where she was discovered by producer John Hammond. Holiday’s collaborations with Teddy Wilson produced hits like “What a Little Moonlight Can Do.” Despite her success, she faced legal troubles and drug addiction, which affected her career. Her final album, “Lady in Satin,” was released in 1958. Holiday passed away on July 17, 1959, but her legacy continues to influence jazz and pop music.