Scrambled eggs" was the working title.

Paul McCartney wrote the melody first and needed placeholder lyrics. He sang “Scrambled eggs, oh my baby how I love your legs” while working on it.

The song stayed that way for months until he finally replaced it with “Yesterday.” The melody came to him in a dream—he woke up, went to the piano, and wrote the tune before it slipped away. The original lyrics were just nonsense to hold the melody together.

It’s one of those great music history trivia bits that makes you realize even geniuses start with something stupid.