Lennon and McCartney finished writing this song in mid-March 1967, written specifically as Starr's track for the album. It was briefly called "Bad Finger Boogie" (later the inspiration for the band name Badfinger), supposedly because Lennon composed the melody on a piano using his middle finger after having hurt his forefinger; but in his 1980 Playboy interview Lennon said: "This is Paul, with a little help from me. 'What do you see when you turn out the light/ I can't tell you, but I know it's mine...' is mine." Lennon also attributed most of the song to McCartney in his 1972 Hit Parader interview: "Paul. It was Paul's idea. I think I helped with some of the words. In fact, I did. Hunter Davies was there when we did it and mentioned it in the book. 'What do you see when you turn out the l