Sgt. Pepper's Lonely Hearts Club Band

Released in 1967, 'Sgt. Pepper's Lonely Hearts Club Band' is a landmark album in the history of popular music, known for its innovative production techniques and eclectic musical styles, ranging from rock and pop to psychedelia. Key tracks include the title song, 'Lucy in the Sky with Diamonds,' and 'A Day in the Life,' which showcase the band's artistic evolution and cultural impact.