When I was younger (in the early 90's) I listened a lot to Guns n' Roses. In their song Paradise City I was sure that the chorus went "Take me down to the Paradise City, where the beer is free and the girls are pretty."
To my grave disappointment it was the, in my opinon, lamer "where the grass is green and the girls are pretty". My version just seems to be more Rock n' Roll.
A childhood belief about misheard lyrics

others believed things like this
- I thought that the song "Built this City" by starship went as follows. "Milk and Cereal, Rock and Roll"Anon
- I used to think that girls' anuses were green. I remember thinking that as late as high school.— Jack
- I thought that the difference between girls and boys was that girls have teeth.
Anon - I thought Rock and Roll were 2 musicians, with one who rocked and one who rolled.Anon
- When I first heard Matt Monro's song "Born Free," I thought he was singing "Porn Free."Anon
- That the city of Christchurch was a big church which everybody lived in.— Christine