A few years ago, when I met Sinatra's "LA is my lady", I thought he sang "I leave behind the father of myself", while the correct line is "I leave behind a part of myself". That may not make sense in English, but I'm Brazilian and my English was even poorer at that time.
A childhood belief about misheard lyrics

others believed things like this
- I used to think that even people who spoke something other than English, thought in English— Peaches
- in the song "show me heaven" i used to sing "make me breakfast" instead of "leave me breathless"Anon
- my mom told my sister and I that if you swallow gum, it won't leave ur stomach for 7 years.— Victoria
- I used to believe that everybody thought in English but it just came out differant.— Emily
- When I was little, I used to think that cats and dogs thought in English???— Isabella
- When I was about 5, I thought that English was the reverse reading of Turkish.— sel