Casio introduced their new slim 5MP Exilim EX-S500 about two weeks ago. Casio setup a site showing how they made the Japanese commercial for the EX-S500.
Casio actually hired Japanese Opera singers to promote the new camera. Looks like Japanese Opera is superior to western opera in some aspects. Anyway, the Casio site (Japanese) features a video of the commercial itself and another video showing the shoot from behind the scenes.
Read more at Behind the Scenes of Casio Exilim EX-S500 Gadget Model Shoot