Much to my shame I was a Shakin' Stevens fan as a kid, and he had this song called "A Letter to You"..and I spent my childhool wondering what on earth "oh oh you don't know that a tiggarain bar and sent it off in a letter to you" meant, until I heard the song years later and worked out he was in fact singing "oh oh you don't know that I took a rainbow, and sent it off in a letter to you"!!! what a twit....!!!
A childhood belief about misheard lyrics

others believed things like this
- When I was little I thought that Shakin' Stevens was Elvis' nephew— Ali
- I used to believe that l-m-n-o-p was one letter.— Micheal
- I used to believe LMNOP was one whole letter.— Walked
- i used to believe i would get my letter to hogwarts when i turned 11— katie Phillips
- I used to believe that L-M-N-O-P was 1 letter, pronounced elemenopeeAnon
- In preschool, I thought that the letter N came twice in the alphabet- W X Y N ZAnon