2015 J-Party Yokohama 　　Since 2013, Kim Jae Joong has held different concerts to celebrate his birthday with fans. Before enlisting in military service, the singer continued the birthday tradition at Yokohama Arena in Japan on January 21 and 22, 2015. On his 29th birthday party, he performed songs from WWW, namely Just Another Girl, "9+1#" and "Light." His cover versions of Tokun...