That feeling when you’re listening to a Beatles song you’ve known for decades with a lead vocal by John… and you suddenly realize, it doesn’t sound like John; it sounds like George.
So you look it up… and it’s Paul.
Corollary: that feeling when it’s really late, and you thought you were trying to sleep… but instead, somehow, you’re reading the entire wiki page for the Beatles song “Paperback Writer.”
Paul wrote it because his aunt mocked him for only writing songs about love!