“I Don’t Want to Spoil the Party” is a song by the Beatles, written by John Lennon and credited to Lennon–McCartney. It was released on the album Beatles for Sale in the United Kingdom in 1964. “I Don’t Want to Spoil the Party” was also released on the Beatles for Sale (No. 2) EP. In the United States, Capitol released the song as the B-side of the single “Eight Days a Week”, and later on the Beatles VI album, both in 1965. The single peaked at number one in the US (it was not released in the UK); “I Don’t Want to Spoil the Party” charted as a B-side, reaching number thirty-nine on Billboard.