Koo Joon-yeop, the former half of the popular 90s K-pop dance duo Clon, has released his debut book on Korean club culture titled, “DJ Koo’s Power Club.” Known as DJ Koo on the Korean club circuit, the book was made available to the public Tuesday during a book signing event that took place at Koobar which the singer-turned DJ also owns. Kang Won-rae (left) and Koo Jun-yup during...