When I was very young my brother and I used to believe the song by Linda Ronstadt "It's so easy to fall in love" went: "It's so wee-wee to fall in love". We called it the "wee-wee" song and loved singing along with it as loudly as possible whenever it was on the radio. I think Mum and Dad must've thought it was pretty funny because they never corrected us.
A childhood belief about misheard lyrics

others believed things like this
- I used to think the song "love the one you're with" was called "love the one, your win. — Glowworm
- I used to believe that the B-52's song "Love Shack" was actually "Love Shark!"— Natalie
- I used to think you could have a heart attack if you failed to fall in love.Anon
- In Beyonce's song 'Crazy in Love', I always thought she said 'Daisy right now'.Anon
- that song that goes *bring me a higher love*
i thought it said *breathing in iron lung*— oi - When Madonna sang "let the choir sing" in "Like a Prayer", I thought she was singing "love by proxy"— Kristen