Here is an interesting blog post about the 10 most common Japanese surnames. Which totally falls in the “fun but useless facts” category. However, by adding idols with those surnames as a mnemonic device, you can memorize these facts and impress your friends! (Or creep the hell out of them because who are these girls and why are they so young.)
Engrish: Help Wisteria
Comment: The #1 surname in ALL OF JAPAN belongs to everyone’s favorite Morning Musume reject. And so THE LEGEND OF SUUCHAN CONTINUES TO GROW.
And the remaining 9…