Can somebody please tell me the name of this song?

It's by a French band and the name of the song is in French (poly vaunce francae or something). I believe the genre is alternative rock, and it's really catchy. I saw it on MTV. The music video is of two mime artists fighting each other with imaginary weapons... weird, but a great song nonetheless.
Update: I recall some of the lyrics going something like this; "Do it because you can and because i told you to".
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