yeah I'm pretty avex only is the company that just manages their Japanese activities.. most like the decisions and all still need to be approved and made by SME : /
hmm about the Xiah thing, I actually think the solo single has been conceptualized a while ago because they do need to at least have the songs recorded or half-way done to announce it, so maybe that's why they still used Xiah Junsu and not Kim Junsu
but well for the COLORS single, it was Jejung & Yuchun from Tohoshinki, not HERO & MICKY from Tohoshinki, so maybe it's just a personal preference thing by the members themselves
