Hey Jude climaxes with one of pop's most legendary hooks." Julian Lennon discovered that "Hey Jude" had been written for him almost 20 years after McCartney composed the song. He recalled of his and McCartney's relationship: "Paul and I used to hang about quite a bit – more than Dad and I did. We had a great friendship going and there seems to be far more pictures of me and Paul playing together at that age than there are pictures of me and my dad." In 1996, Julian paid £25,000 for the recording notes to "Hey Jude" at an auction. He spent
Hey Jude reviewer contrasted "Hey Jude" with its B-side, "Revolution", saying that "The other side of the new disk urges activism of a different sort", due to McCartney "liltingly exhort[ing] a friend to overcome his fears and commit himself in love". "Rolling Stone" also attributed the song's meaning as a message from McCartney to Lennon to end his negative relationships with women: "to break the old pattern; to really go through with love". Other commentators interpreted "Hey Jude" as being directed at Bob Dylan, then semi-retired in Woodstock. Writing in 1971, Robert Christgau of "The Village Voice" called it "one of [McCartney's]