This is a remix of a Kingdom Hearts 2 track. Kingdom Hearts is oh so (C) Square Enix and the musical score to the original track (entitled "Sinister Sundown") was created by Yôko Shimomura.
The instant I heard this track play in Twilight Town when some stuff was going down I wanted to hear it all danced up. It had the perfect melody and rhythm to it.
So I did ;] enjoy.