Here's Michael Cera starring in a video for Islands' "No You Don't" (appropriate because both Cera and Nick Thorburn are originally Canadian). You might think this makes Cera a certifiable hipster, though consider this — Cera was recently photographed with some of the cast of MTV's "Jersey Shore."
On the other hand, if he's ironically hanging with the guidos, that's a very hipster thing to do. And that photo shoot was a promotion for "Youth in Revolt," a film based on a comic book. OK. I think we have all the evidence we need. (Unless, of course, the "YinR" soundtrack sucks.)
Welcome to Brooklyn, George Michael.