Astrud Gilberto, the Brazilian singer, songwriter and entertainer, has died at age 83. She became an overnight superstar in 1964 with her off-hand English-language vocals on the classic bossa nova album “Getz/Gilberto”. Her voice became the face of bossa nova and she released over 20 albums in her five-decade career, receiving numerous awards including a Grammy Lifetime Achievement Award. She is survived by her daughter, Bebel Gilberto, who is also a singer-songwriter.