Mr. Tambourine Man is the debut studio album by the American rock band the Byrds and was released on June 21, 1965, by Columbia Records. The album is characterized by the Byrds' signature sound of Jim McGuinn's 12-string Rickenbacker guitar and the band's complex harmony singing. The material on the album mostly consists of cover versions of folk songs, primarily composed by Bob Dylan, and originals written or co-written by singer Gene Clark. Along with the Dylan-penned single of the same name, Mr. Tambourine Man established the band as an internationally successful act and is widely regarded by critics as representing the first effective American challenge to the chart dominance of the Beatles and other British Invasion bands during the mid-1960s.