To the BeeGee's Night Fever - for years I thought the lyrics were "In ninety-ninety-nine, we'll know how to do it..." instead of "Night Fever, Night Feee-verr..."
I just assumed they were singing about the millenium party
A childhood belief about misheard lyrics

others believed things like this
- i used to belive a fever was a beaver crawling in my head i no right?— poe
- I used to believe my dolls would come to life at night and have a party while i was sleeping. — phil(:
- That numbers went 1-99 the A hundred, a hundred and one til a hundred and ninety nine. Then ONE hundred...— Foolhardy
- My mother didn't want me outside at night so she told me i had to come in or else 'the night air would get me'— Dan
- I used to think the word fever was just another word for giraff— Marshall m
- I used to believe reindeer made it rain because for many years it rained on christmas eve night.Anon