A famous bit of Beatles trivia is that Paul McCartney woke up one day with the fully formed melody for “Yesterday” running through his head. He didn’t have words so to help remember it, he started singing “Scrambled eggs/Oh my baby, how I love your legs.”
After singing the melody for everyone he could find, convinced that he’d subconsciously stolen an existing popular song, he ended up writing the real lyrics for what has become the most covered song of all-time.
On a recent episode of “Late Night with Jimmy Fallon”, Paul McCartney sang the “original” version for the first time ever.