You’re about to read “Superfans! Then and Now.” This text pairing is about two popular bands and how their fans helped them become superstars. It got us thinking about all kinds of fandoms— that’s the name given to groups of fans who share a love for a specific musician, TV show, movie, book, comic, or more.

How much do you know about fandoms, past and present? Take this quiz to find out. (Don’t worry if you don’t know the answers. By the time you’re done, you’ll be an expert.)