The Oak Ridge Boys are an American country and gospel vocal quartet. The group was founded in the 1940s as the Oak Ridge Quartet. They became popular in southern gospel during the 1950s. Their name was changed to the Oak Ridge Boys in the early 1960s, and they remained a gospel group until the mid-1970s, when they changed their image and concentrated on country music. Richard Sterban ultimately became best known for his "oom-pa-pa-oom-pa-pa-mow-mow" bass solo in the Oak Ridge Boys' 1981 single "Elvira" and sang lead vocals on a select few of the group's songs, including a cover of The Righteous Brothers' hit "Dream On", which was a top-ten hit. Richard Sterban signed 3x5 Index Card w/Oak Ridge Boys inscription. JSA Authentication #LL60234 and JSA Certificate of Authenticity.