Today is the birthday of one of the most popular stars in both K-pop and J-pop, none other than Kim Jaejoong aka Hero of TVXQ / DBSK / Tohoshinki. Jaejoong was born on January 26, 1986 and turns 25 in Korea (24 in America). He has won numerous "best-looking male" polls in both Korea and Japan and has recently dived into acting by starring in the Telecinema project Heaven's Postman. Our friends over at ONETVXQ recently organized an event to have #happybdayjaejoong trending on twitter. It looks like they were successful as #happybdayjaejoong was the top trending topic for nearly an hour: Happy Birthday to Jaejoong and hopefully 2010 is a good year for him and the rest of TVXQ (as a quintet). Bonus Video, Welcome to HeyJJ http://www.youtube.com/watch?v=hPJbO2-LCaA