Billie Holiday (1915–1959), known as 'Lady Day,' was one of the most influential jazz vocalists of the 20th century. Her deeply personal singing style, characterized by her ability to bend notes and convey profound emotion, transformed the art of jazz singing. Holiday's collaborations with Lester Young, Teddy Wilson, and other jazz giants produced some of the most moving recordings in jazz history. Her signature songs include 'Strange Fruit,' 'God Bless the Child,' and 'Lady Sings the Blues.' Her influence on subsequent generations of singers is immeasurable.