When I was about 14 or so, me and my mum were watching Annie and she started singing along with the song "It's A Hard Knock Life" complete with what she thought were the correct lyrics: "it's a hard knock life for us, we're from the or-phan-age!"
7 years on and I still remind her about it whenever the song comes on, or whenever anyone mentions anything to do with Annie in general.
My mum turned 50 last year.
A childhood belief about misheard lyrics

others believed things like this
- Thanks to the movie "Annie", I thought hot dogs were made from real dogs. — Katie
- I thought there was some video games so hard that if you died on them you also died in real life!— Kakuri
- I used to think that the line in the song "Life in the Fast Lane" was "Fights in the Bat Plane".Anon
- I used to think that the Eagle's song "Life in the Fast Lane" was actually "Pike in the Bass Lane."— Quilla
- That song that goes:
I'll never let you go...
I thought he was singing:
Another machine gun...
Haha.— Kelle - My mum always thought the lyrics to macy grays song was i try to say goodbye to my chook.— alana