I was watching a concert on tv. They announced the next performers would be
"Olivia New and John".
I thought it was weird for the guy to have no last name, and then it got even weirder because only one woman performed. It was years before I realised it was Olivia Newton John.
A childhood belief about pop stars

others believed things like this
- I used to think that Olivia-Newton John was three people like Sharon, Lois and Bram....Olivia, Newt and John— J
- I thought that Olivia Newton John was a group, Olivia Newt and John. — Sam O.
- I used to think that Olivia Newton-John was 3 people: Olivia, Newt, and John— Sally
- As a child, I thought that Olivia Newton-John was Elton John's wife and Juice Newton's sister.— Connie
- As a child I used to think that Olivia Newton-John and Elton John were married.
Boy, I was way off.— Lisa - Olivia Newton John did sing let me hear your budgie talk! didn't she— J Scull