First, he must be a secret AZN. It takes much less than a keg depending upon geneology.
Second, karaoke is actually the revenge of overweight redheads upon society. Not wanting to draw any more negative attention to themselves, they decided to put up a cover campaign to make it appear as though asians were responsible. However, they did not anticipate the virus like effect it would have upon asian culture (much like beer in vending machines) and we have been witnessing the epidemic spread of the disease continuously over the last 30 odd years.
Third, anime is what you do when national acting talent is restricted to animated media due to not looking nearly as bad ass as the characters you are portraying (mostly due, however, to a misconception that a hero must look like Butch McManhood or some crappy teenage vampire from 'Twilight'). I cannot explain the cases of anime where the heroes look like young asian boys... perhaps those cartoons are just hentai pornography with the good bits cut out.