"We built this city" by Starship. All younger members in our family were upset to find out that the lyrics actually went 'we built this city on rock and roll' and not 'we built this city on sausage rolls' as we had thought.
A childhood belief about misheard lyrics

others believed things like this
- I thought that the song "Built this City" by starship went as follows. "Milk and Cereal, Rock and Roll"Anon
- I used to believe that in the tooth fairy took all your teeth and built a tooth city for her to live in!Anon
- I used to think the song "Who Built the ark? Noah. Noah." was "Who built the Ark? No one, no one!"— Embarrassed Kent Girl
- When I was younger, I believed that the Chinese Mann Theatre was built in honour of Bruce Lee.— glenys
- I thought that on the show "American Chopper" they built helicopters.— Alex319
- I used to think no one built the ark because I confused it with Noah.Anon