Rant of the day: Annoying people pretending to be experts in your field.
Obviously, if I follow something or take interest in it, I'm going to know a lot about it. It's fine if that person doesn't know much about it themselves, but don't pretend you know more than me when you've only brushed on it yourself! Honestly, you just end up making a fool of yourself by asking stupid questions.
A much better way of making conversation would be asking things like "Which K-pop groups do you like? Which ones do you follow? Have you been to any concerts?" etc.
And I don't take offence if people don't share the same interests as me - more than happy to just move on to the next topic and talk about your own interests instead. =)