K-Pop fans gathered in Yokohama, Japan, for an amazing concert with Hallyu's top idol groups. The explosive talent of Choshinsung, Supernova! The boys-next-door who can charm anyone, U-KISS! Charismatic idol group, Boys Republic! And the rising new stars, Hotshot! It was a crazy, fun-filled night filled with music and dance ? Here's the Hallyu concert in Yokohama.