Have you ever watched Michael Jackson's "BAD"?
"BAD" means cool, wild and nice guy, or "Kakkoii-Otoko" and "waruppoi-Otoko" in Japanese.  (It is really difficult to translate into Japanese.) Today's performance on stage had a lot of "BAD" guys. 
This picture is from a short drama titled "Kimagure Dochu" (Capricious Traveler)