I have noticed this name and it confuses me till today. I got confused when cos I don’t know if it’s a songname or the name of the singer/band. And when someone mentioned I’ve’s Kotoko, I got even more confused.
And now, after a bit of googling, we have this informative link. Be sure to set page encoding to Japanese and check out the Information link on the left.
date time ticket price is confirmed of kouhaku check out the website for details
okie!