I believed that TLC's "Don't Go Chasing Waterfalls" really was "Don't Go Jason Waterfalls". It could be a guy, right?
A childhood belief about misheard lyrics

others believed things like this
- When I was a kid I used to believe that the sun was chasing me .— Christopher
- I used to believe my shadow was chasing me whenever I ran— Rose
- when i was little, my dad told me that the moon is chasing me..quite cool~— lily
- I would turn the lights off and then leg it up the stairs thinking a monster would be chasing me.Anon
- I always believed that my dad went to school with Billy Bunter. I think my brother believed it too!— Karen
- When I was 4 I believed I was a dog— Henry (the hound)