Discumentary: The Beatles "Rubber Soul"
Released in December 1965, "Rubber Soul" signified a change in approach for The Beatles. The group wasn't making teen pop songs anymore, along with George Martin as producer, this album began to show the group's experimentation with folk-rock and other instrumentations. It would pave the way for The Beatles to become even more experimental on albums like "Sgt. Pepper's Lonely Hearts Club Band" and "The White Album.