Psy triumphs in Russia

Korean singer Park Jae-sang, better known as Psy, greets fans outside Olimpiysky Sports Complex prior to a press conference devoted to his Moscow concert, Friday (above photo); Fans dance to Korean singer Psy's song “Gangnam Style” in a flash mob held outside Olimpiysky Sports Complex where Psy's press conference was held (below). / AP-Yonhap