Netherton became a born again Christian following a sermon he heard at a Baptist church in Panama, spending a year at the Bethany Fellowship Missionary Training Center in Bloomington after his discharge from the Army.
Faced with making a choice between missionary service and a career in entertainment, Netherton chose to follow the same path taken by his idol, Pat Boone, and became a Christian singer.
His career post-Lawrence Welk included touring and performing around the United States as well as acting in stage musical productions of Oklahoma!
[citation needed] During the 1970s and 1980s he appeared on television commercials for Rose Milk skin care lotion and Nabisco's Triscuits crackers.
Netherton was a guest on television shows such as Pat Robertson's The 700 Club, Robert Schuller's The Hour of Power and would appear at Billy Graham religious crusades.