I'm not sure if this has been posted or not, but even if it has it's so hilarious that it's worth posting again.
Kingdom Hearts the Musical
I haven't played either Kingdom Hearts game, but this made me laugh a lot - especially the section with the Dutch version of "Barbie Girl." If you click on the user's name you can watch many more Kingdom Hearts spoofs - some musical, and some with new dubbing or subs. They're all pretty hilarious, but the musical is the best.
