Donald Edgar "Gus" Backus (September 12, 1937 – February 21, 2019) was an American singer. He started his career as a member of The Del-Vikings and later became a successful Schlager singer in Germany. == Life and career == Backus was born on Long Island and started his music career with the Del-Vikings, the first notable doo-wop group with both black and white members which had two Billboard Hot 100 Top Ten hits. After he was stationed as an airman... [more on Wikipedia]