The Oak Ridge Boys are an American country and gospel quartet, known for their distinctive four-part harmonies. The group was formed in 1945 and has undergone several lineup changes, with the most enduring and successful lineup consisting of Duane Allen, Joe Bonsall, William Lee Golden, and Richard Sterban. They achieved significant success in the 1970s and 1980s, with hits like "Elvira" and "Bobby Sue" showcasing their signature blend of country pop and gospel music. The Oak Ridge Boys' influence and longevity in the music industry led to their induction into the Country Music Hall of Fame in 2015.