Have you ever participated in a kpop Meet and Greet? If so, then which group/artist did you meet? If not, which group/artist do you want to meet?

For me, I haven't participated in a meet and greet, I really want to though. If I had to choose either SHINee, TVXQ, or Boyfriend it would be too much of a dream if I got to meet all three groups ^.^