I used to believe that in the Hot Chocolate song "You Sexy Thing", the lead singer was singing "I believe in wackos" instead of "I believe in miracles".
A childhood belief about misheard lyrics

others believed things like this
- I always thought Hot Chocolate were singing 'You Sexy PIG' instead of 'You sexy Thing.— Bilz
- I used to believe that Prince was the lead singer of Queen— Garrett
- I was sure that Led Zeppelin was the lead singer of the Rolling Stones.— dave
- I always thought song went "I Believe In Malcolm" instead of "I Believe in Miracles"— Malcolm Lover
- My dad thought the song "I believe in Miracles" was actually "I Believe in Milkos" hahah he's 52!!! — GrK GdEsS
- I used to think Right Said Fred sung 'I'm too sexy for my lamb' instead of 'I'm too sexy for Milan'.— Nineties music was great