"Crazy Chocobo", a heavy metal version of the Final Fantasy series' Chocobo Theme, is not a fan project: The song actually appears on the official Final Fantasy XIII-2 soundtrack. Needless to say, it feels out of step with the series' generally orchestral score.
Even more striking, "Crazy Chocobo" has lyrics! I honestly can't tell you what they are, but according to Topless Robot, one line goes: "Saddle up if you think you can ride in this rodeo / Are we in hell? I don't know..."
FInal Fantasy has been known for its music for a long time. I guess Square Enix is looking for a different type of notoriety this time around.