Hirai Ken is currently looking back on 15 years since his debut and for this occasion, he will be releasing his first coupling-best album “Ken Hirai 15th Anniversary c/w Collection ’95-’10 ‘Ura Uta Baka’” on November 11th. It has been five years since his album “Ken Hirai 10th Anniversary Complete Single Collection ’95-’05 ‘Uta Baka’”...