Oak Ridge Boys
One of the longest-running groups, the Oak Ridge Boys started life as a gospel quartetaround 1943 before gradually modernizing their style and moving into secular country-pop. Yet even at the height of their popularity in the late 70's and early 80's, their style always remained deeply rooted in country gospel harmony. Lloyd Green's playing was a steady element in their recordings, he can be heard on none less than 12 (!) of their #1 hit records between 1978 and 1985, starting with "I'll Be True To You" (1978) through "Elvira" and "Fancy Free" to "Little Things" in 1985.