"I Feel Fine" was released on November 23, 1964, as the A-side of their eighth single. The recording includes one of the earliest uses of guitar feedback in popular music. Lennon wrote the song's guitar riff while the Beatles were in the studio recording "Eight Days A Week" in October 1964, and kept playing it between takes. He later recalled: "I told them I'd write a song specially for the riff. So they said, 'Yes. You go away and do that', knowing that we'd almost finished the album Beatles For Sale. Anyway, going into the studio one morning, I said to Ringo, 'I've written this song but it's lousy'. But we tried it, complete with riff, and it sounded like an A-side, so we decided to release it just like that." "I Feel Fine" went to the pole position in the United States, United Kingdom, Canada, Australia, the Netherlands, Sweden, Norway, and Ireland.