The group recorded another album for Starday and another on Skylite in 1965. In 1966, Gatlin left the group to become a minister of music and, on Golden's recommendation, Duane Allen, formerly of the Southernairs Quartet (and more recently baritone of the Prophets Quartet), was hired to replace him. With Willie Wynn still singing tenor and Herman Harper as bass, the group made another album for Skylite, one for United Artists, and then began recording on the Heart Warming label. Between 1966 and 1973 they made 12 albums with Heart Warming, and the company also released several compilation albums on which they were included during those years. The group also had an album on Vista (Heart Warming's budget label) that included unreleased songs from previous sessions. Harper left the group in 1968 to join the Don Light Talent Agency, before starting his own company, The Harper Agency, which remains one of the most highly-reputable booking agencies in gospel music. Noel Fox, formerly of the Tennesseans and the Harvesters, took over the bass part. In 1970, the Oak Ridge Boys earned their first Grammy award for "Talk About the Good Times".