Ella Jane Fitzgerald (April 25, 1917 – June 15, 1996), also known as "Lady Ella" and the "First Lady of Song", is considered one of the most influential jazz vocalists of the 20th century.

With a vocal range spanning three octaves, she was noted for her purity of tone, phrasing and intonation, and a "horn-like" improvisational ability, particularly in her scat singing. She is widely considered to have been one of the supreme interpreters of the Great American Songbook… More on wikipedia