A video of Psy's Guerrilla Concert, held a couple of weeks ago in Hongdae, was recently uploaded onto Psy's official Youtube channel. During the concert, Psy showcased his passionate and energetic dance for his title track, 'RIGHT NOW', as well as performed many of his past hits. After the concert, Psy's 'followers' list on his me2day increased at a rapid rate from 16,000 to 45,000. Comments left on his me2day included, "I've purchased a ticket for his December concert already", and "Please come to my neighborhood too." Psy will be performing at the 'YG FAMILY CONCERT' on December 4th and 5th, and will also be holding a 3 day concert from December 23 to the 26th with Kim Jang Hoon, titled '2010 Kim Jang Hoon and Psy's One Touch'. Check out the video below! (We kind of wish he surfed the crowd, that would have KILLED it!) Source: Newsen