Everyone knows how the Beatles occasionally went all meta, referring in their own Beatle songs to other Beatles songs. Without the Tate-LaBianca murders and the Paul is Dead rumour, these name-checks might never have received so much attention.
But I can now reveal, exclusively, how deep the phenomenon goes. My extensive research has revealed other cryptic instances of Beatle self-referentiality, not presently addressed in Beatleology literature.
Glass Onion is the mother lode, referring to Strawberry Fields Forever, I Am the Walrus, Lady Madonna, The Fool on the Hill, and Fixing a Hole.
Lady Madonna refers to I Am the Walrus (“see how they run …”)
I Am the Walrus refers to Lucy In the Sky With Diamonds.
John Lennon sings the chorus of She Loves You during the fade-out to All You Need Is Love.
These are accepted instances, and well understood, but:
This Will Blow Your Mind
During Honey, Don’t Ringo sings “I feel fine”, which is also a Beatles song.
In Hey Jude, Paul sings “don’t let me down”, which is also a Beatles song.
Revolution 1 and Revolution 9 both refer, by lyric and title, to Revolution, which is also a Beatles song.
You’re Going to Lose That Girl and Another Girl both contain the title of another Beatles song: Girl.
You’ve Got to Hide Your Love Away and All You Need is Love make explicit reference to a later solo song by John Lennon: Love.
What does this all mean? I and my fellow Beatleologists will need years to explore all the ramifications of these colliding circles of Beatle wordplay. Our findings, when announced, may stun the world.