i knew someone who believed for ages that the words to Madonna's 'like a Virgin' were actually 'like a fir-tree' ;-)
A childhood belief about misheard lyrics

others believed things like this
- I use to believe that a "Prima Donna" was "Pre-Madonna"---someone before Madonna's time.
— Lacey S - When I was five, I believed God was big as a tree, a tree being the biggest thing I could convieve of.
— Chris - We told our little sister that she had a long bushy tail and she fully believed us for ages!!Anon
- Turtles can fly. I believed it for ages.
My turtle got lost or probably died and I was told it flew away.Anon - I used to believe that the Doller Tree store was an actual tree.Anon
- I used to believe that the word prima donna was actually pre-MadonnaAnon