Is it cheating that I'm using the Japanese version of a song that's originally German? Yes. Do I care? No. The catchiness is just irresistible!
Side note about Japanese itself: To be honest again, I'm not a fan of Japanese. I'm all for languages with a lot of vowels (after all, Finnish fan), but when I hear Japanese being spoken, to me it always sounds a little...messy. Like everything is running together, almost sloppy. And of course, the script which has no phonological consistency is also a significant turnoff.