I agree with Eos, the surgery has a chance of failing so don't get your hopes up just yet. Concerts are concerts, you can't control what happens and neither can Yoshiki. And for those of you who have had any sort of surgery, you know how painful it is when you wake up. You basically have a knife wound. I was in pain for two weeks striat after having my appendix taken out. It's not fun and pain also makes your stomach go sour on you, not a fun experience. The recovery for any small surgery is a month for you to fully heal. This I would assume is a medium surgery because of the thickness of the skin around the area (at the back of the neck) but nevertheless it is still something that takes time to recover from. So he could be out for upwards to two months, then there is the time it takes to practice. So, please people, this is something serious when dealing with nerves. Numbness in the hands is never a good thing. You should support him instead of being selfish and going for the concerts (I don't mean to offend anyone, but it's the truth). Yoshiki has been selfless for the longest time, I think we should allow him to recover so that he can perform for us.