My across the street neighbor (who was about 7 at the time) swore up and down that the words to Travis Tritt's song "T-R-O-U-B-L-E" went "I spilled tea all over you and me"... you couldn't convince her otherwise.
She also thought that song "Mi Vida Loca" by Pam Tillis went "...I take corners onto hills" instead of "I take corners on two wheels" (a little geographically challenged I think) and "it's a never ending circus ride, we know farts need not apply"... instead of "faint of heart need not apply". I suggested she just turn off the radio and never listen again.
A childhood belief about misheard lyrics

others believed things like this
- i used to believe the turning signals on cars helped them turn sharp corners.— Julia
- I believed my dad when he said that he could see round corners. — Charisma
- I thought the song "Party Time" by Moby was actually saying "heart attack" (this was before I knew the title)— Elviessa
- The song called heart of glass mixed me up as a kid. I heard "Heart and ass". — oops
- I thought being mentally challenged meant you couldn't do any challenges with peopleAnon
- I used to believe that if you pressed on the inside corners of your eyes that your eyes would pop out.— Sabrina