BIGBANG JAPAN DOME TOUR 2014～2015 “X” was the fifth and the second consecutive concert tour in Japan by South Korean band BIGBANG. The tour began on November 15, 2014 in Nagoya, and concluded on January 18, 2015 in Osaka. BIGBANG JAPAN DOME TOUR 2014～2015 “X” Made Big Bang the first foreign artist to hold five dome concerts for two consecutive years, they gathered more than one million fans in 2014.