I'm not very old still, but when i was smaller and living in england, there was the popular remake of the song "killing me softly" by lauren hill, and the chorus goes:
killing me softly, with this song
but for some reason, i always thought it was:
killing me softly, with his saw
and i would sing it out loud and no one would say anything so i assumed it was correct.... heh
A childhood belief about misheard lyrics

others believed things like this
- i used to believe that serial killers were going around killing all of the cereal— Tiffany
- until I was thirteen I used to believe that "homocide" was two homosexuals killing eachother. Anon
- I used to beleive that cerial killers were cerial makers who went around killing people!— Jenny
- I used to think topping yourself meant killing yourself by spinning upside down, like a spinning top!!— Natasha
- I used to think that the chorus of "mountain song" by jane's addiction was in a different language— nothing'sshocking
- I thought that singer/songwriter was spelled this way: sing-a-song-writer...Anon