Jo Elizabeth Stafford (November 12, 1917 – July 16, 2008) was an American traditional pop music singer and occasional actress, whose career spanned five decades from the late 1930s to the early 1980s. Admired for the purity of her voice, she originally underwent classical training to become an opera singer before following a career in popular music, and by 1955 had achieved more worldwide record sales than any other female artist.
Her work with the United Service Organizations (USO) giving concerts for soldiers during World War II earned her the nickname "G.I. Jo".
https://en.wikipedia.org/wiki/Jo_Staffordhttp://www.imdb.com/name/nm0821300/bio