I learned a few days ago in Gangnam, Korea about a new hit everybody was doing in the local Karaoke joints. I thought this is something I have to share with my kids and friends, nobody should know about it. Little did I know my kids has already been playing for weeks. Last week it was at 160M views, and today it has passed well over 200M. Huge for a K-Pop song, and another lesson in how such things can go globally viral.