Kim Bum, Ahn Jae Hyun, Jung Il Woo and Choi Jin Hyuk Attend a VIP Premiere of Upcoming Film 'Gangnam 1970' - Jan 20, 2015 [PHOTOS] Tags Kim Bum Ahn Jae Hyun Jung Il Woo Choi Jin Hyuk Gangnam 1970 Gangnam Blues BY MyraStar Jan 22, 2015 07:38 PM EST