Sgt. Pepper's Lonely Hearts Club Band is an album released by The Beatles. It was the 9th Beatles album to be released in the United Kingdom. It was released on 1 June 1967, and stayed at the top of the charts for twenty-seven weeks. It has lots of well-known songs such as McCartney's "When I'm Sixty-Four" and "A Day in the Life", which Lennon and McCartney worked on together. For a while before this album came out, The Beatles had been trying new things when they made records, but this album made a much bigger change in the way they sounded.