Okay, so we finally found the point where you are absolutely, inarguably and irrevocably not punk anymore. Full story at the Wall Street Journal:

The competition between the various singing competitions may be better than the actual singing on the shows themselves. Last night it was announced that Green Day frontman Billie Joe Armstrong would be joining “The Voice.” The Grammy-winning punk rocker, the force behind such albums as “Dookie” and “American Idiot,” will serve as a mentor assisting Christina Aguilera’s team.

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