I used to think the song, "He's A Jolly Good Fellow" was, "He's a Jolly Good Mellow."
A childhood belief about misheard lyrics

others believed things like this
- my friend thought that the film 'the hulk' was about the jolly green giant from the sweetcorn adverts.— patticus
- When I was little I used to believe everything the government does is right and for the good of everyone.— Rob
- I used to think that my cat was an alien that had come to teach me how to be good!— laz
- when I was a little boy I thought i would become zidane but i was not as good as him— elbouteman10
- i used to believe that if i was good at school, i had a chance of becoming the queen????— donia
- I used to believe that aliens would come and take me if I wasn't good to my parents— somebody