TOKYO--(BUSINESS WIRE)--Avex Live Creative Inc. confirmed that Ultra Japan will be held again in Tokyo Odaiba next year as a three-day event starting on September 19th, 2015. Ultra Japan 2014 was the first Ultra music festival to be held in the country. The attendance of the two-day event totaled forty-two thousand, making it one of the largest dance music festival ever to take place in Japan. Top DJs including world #1 Hardwell, Afrojack, Alesso, Martin Garrix, Kaskade, Axwell Λ Ingrosso, Fedd