The famous crooner rose to fame in the mid '50s and during his career made a remarkable 18 gold and three platinum albums. He hosted the variety TV program The Andy Williams Show from 1962 to 1971, as well as many more specials. Williams -- whose hit Moon River became his signature song -- was also owner of the Moon River Theatre in Branson, Missouri.
He is survived by his wife Debbie and his three children, Robert, Noelle and Christian. In lieu of flowers, the family has asked that donations be made to the Bladder Cancer Advocacy Network
The Osmond family released this statemement: "We will be forever grateful for the interactions we had with him, not only did he discover us as a group, but also allowed us the opportunity to be discovered as individuals and develop our own talents.
"Even when we went out on our own, we were known as Andy's background singers, performing such iconic songs as Moon River and The Days of Wine and Roses.
"He took us to such great heights in our career. One lasting memory I have is when Neil Armstrong, also a big fan of Andy Williams, took Andy's song Aquarius with him to the moon. We sang with him on that record, which Neil played to the world and beyond!"