Until 30 seconds ago, I believed that in the Avril Lavigne song "Things I'll Never Say", she was singing:
"If I could see what I wanna see
I wanna see you go down on me..." I found out that the words are actually:
"If I could see what I wanna see
I wanna see you go down on ONE KNEE..." Silly me.
A childhood belief about misheard lyrics

others believed things like this
- I used to sing at the top of my voice "OLD GIRLS JUST WANNA HAVE FUN"— claire
- I used to think that your knee cap was called your knee ball.— Erika
- That song that goes:
I'll never let you go...
I thought he was singing:
Another machine gun...
Haha.— Kelle - In Prince's song "I Would Die for You" I used to think he was singing "Apple Dapple do!" — Sara
- The buckinghams song "kind of a drag", i always thought they were singing, "Canada Dry"— bobbybobby
- When I first heard the song "Constant Craving" by KD Lang, I thought she was singing "God save gravy."Anon