BoyNextDoor to drop single in Japan before tour

BoyNextDoor is rolling out a digital single in Japan on Aug. 18, its second in the country, according to KOZ Entertainment on Thursday. The six-member act will perform the single “Boom Boom Boom” on a live television show one day before release, marking its first new song in Japan in about a year. The single comes three days before the group begins the Japan leg of its first overseas concert tour, “Knock on Vol. 2.” It will take it to six regions in the country: Kanagawa, Saga, Osaka, Miyagi, Na