In response to the myriad of fan theories about the secret meanings behind the Beatles’ music (backmasking, “Paul is dead”, that kind of shit), John Lennon wrote the song Glass Onion, which would be included on the group’s self-titled White Album. It’s basically a troll set to music, referencing other Beatles songs to give fuel to the people who think that they intentionally put in all these cryptic messages in their art... when in reality, it meant pretty much fuck-all. Many layers, but all of them see-through right down to the core: a glass onion.
