The Monkees song "Sometime in the morning": Real lyrics are "you need no longer wear a disguise", I thought it was "you need no underwear or disguise".
A childhood belief about misheard lyrics

others believed things like this
- i used to believe that a volcano was an upside-down UFO in disguise— Sally
- i used to believe that my dog was really a cat in disguise trying to get information on the dog empire!— strange and used to be stupid
- I used to believe that eye-lash curlers were eye-ball eating aliens in disguise— Eliza
- i used to think the song "walking in a winter wonderland" was "walking in a womens underwear"— stephen s
- My mum always thought the lyrics to macy grays song was i try to say goodbye to my chook.— alana
- in the song with the lyrics "take your passion" my sister used to always think it was "take your pants off"— Steped