The ever-delightful Kim Heechul of Super Junior, recently revealed a photo of his unique club, "Joker's Ball", on twitter.  The club seems to be intended for those with a stereotypical AB blood type personality, being described as something "for those who seem a little psycho, but have charm the more you get to know them." In addition to Kim Heechul, the club members consist of FT Island's Lee Hongki, Choi Jonghoon, Jo Sungmo, Jungmo of Trax, Noh Minoo, Shinee's Jonghyun, and Supreme Team's Simon D.  Heechul tweeted, "AB blood type good. The awesome Joker's Ball," and Lee Hongki responded, "No matter what anyone says, the Joker's Ball is the best. I love you guys." The photo above is from a recording of the SBS Haha Mong Show.  The day of the recording, the members of the Joker's Ball apparently celebrated veteran ballad singer, Jo Sungmo's, 12th year anniversary.  It was reported that they all sang his former hit, "Do You Know." Source: Nate