I don't know but I think they are the only Korean girl group who are doing this! I mean, all the freaking concerts, Japanese remakes and now, the fanmeetings. Though, I wonder why they don't have promoted any original Japanese single yet? They are always making remakes from their Korean promotions. I think they will be more loved if they do that thing. But I bet, T-ara is more popular than Kara now in Japan. Lucky Japanese, I hope you'll love T-ara as much KKS is loving you. XD