On This Day In 1967: The Beatles released the groundbreaking concept album, Sgt. Pepper’s Lonely Hearts Club Band.  The album was a worldwide critical and commercial success, spending a total of 27 weeks at the top of the UK Album Chart and 15 weeks at number one on the American Billboard 200. A defining album in the emerging psychedelic rock style, Sgt. Pepper was critically acclaimed upon release and won four Grammy Awards in 1968. Often recognized by prominent critics and publications as one of the most influential albums in the history of rock music, Sgt. Pepper frequently ranks at or near the top of published lists of the greatest albums of all time. In 2003, the album was placed at number 1 in the Rolling Stone magazine’s list of the 500 greatest albums of all time.