A word that isn't cool yet

Hipsters are said to like things before they were cool. Now that everyone knows about the thing, to the hipster it's no longer cool.

We're looking for a word for someone who's on the other side of that. They get into things that were cool, but whose cool-time has passed. Now people think "what, someone's still into that?" ... and that's when this person gets into it in the first place. Suggest a good word for that?