I don't know. I entered in Koda Kumi just to see, it had no idea what I was talking about lol I think I tried entering her name in last year and they didn't have a clue what I was talking about. so maybe it was just recent, maybe for the tour
but I'd just keep spamming the crap out on Kayzu's twitter, demanding she come. I'd say demand these cities: NYC, LA Las Vegas and Chicago.