The mother of my ex-girlfriend used to think the Bee Gee's song "More Than A Woman", was "Bald Headed Woman". She also thought John Mellencamp's "The Authority Song" said "I'm fightin' Dorothy and Dorothy always wins". First time I heard it was one of the biggest laughs I've ever had.
A childhood belief about misheard lyrics

others believed things like this
- I thought the line in the song "more than a woman" was "four-legged woman".— boo
- I used to think that the song "Evil Woman" was "Medieval Woman". Anon
- I always thought that Zuccero's song "Senza una dona" was actually "Sence of a woman"— Miroslava
- I used to be convinced that there were bald-headed beige aliens outside my toilet window.— Phil
- When I first heard Bruce Springsteen's song, "Born in the USA," I thought that the song was "Porn in the USA"Anon
- My sister just recently realized that the lyric "more than a woman" wasn't 4 letter woman!— Anne