Peggy Lee was an American jazz and popular music singer from Jamestown, North Dakota, who began her professional career in the late 1930s and rose to prominence as a solo artist in the 1940s. Her cool, understated vocal delivery and sophisticated phrasing blended jazz, pop and torch-song traditions, and over a multi-decade career she also worked as a songwriter and actress, contributing to mid-20th-century popular music and vocal interpretation.