My family is Catholic, and every Sunday when I was a kid we'd go to church. Just before the kids left the main sermon for Sunday school, we'd sing Hosanna in the Highest. Despite being in the church choir, five-year-old me thought "Hosanna" was actually "Lasagna." (We're also Italian; maybe I had lunch on the brain?) I couldn't, for the life of me, figure out why the adults were singing about holy lasagna.
A childhood belief about misheard lyrics

others believed things like this
- I used to think that church songs were pop music. Well, we did sing them in church every week...— Roxy
- When Madonna sang "let the choir sing" in "Like a Prayer", I thought she was singing "love by proxy"— Kristen
- I used to believe that the sun shone brighter on a Sunday! Sunday in all languages is named after the Sun!!!— Vasu Moses
- I used to believe the local Catholic church was Disney Land.— Sherri
- that the money I gave at sunday school would go straight to God.— christine
- I remember back in sunday school that if you stomped on the ground you would hurt satan. Anon