For years I thought the first line of the song 'Word up' was 'bald headed ladies around the world' when it's actually 'Yo, pretty ladies around the world'.
A childhood belief about misheard lyrics

others believed things like this
- I thought the lyrics to "Single Ladies" were "If you liked it, then you should've put your name on it."Anon
- I thought that the role of Lollipop ladies was to give out lollies. Shame!— Helen
- when I saw those prepare to meet thy god signs I thought they were beauty parlours for religous ladies only!— knuckles
- I used to be convinced that there were bald-headed beige aliens outside my toilet window.— Phil
- I used to think that the sound after the toilet was flushed was ladies singingAnon
- I used to believe that the reason ladies had big bouffant hairdos was that their heads were shaped that way.— Bea