The World Cup fever is gradually building up with June nearing for the global spectacle in South Africa. Just this past week, we have heard about girl groups like T-ara and KARA who will be releasing World Cup songs. But another girl group HAM has fired the first salvo by releasing their MV titled We Are One for the World Cup. Unlike the other two groups, HAM's song is adopted as the national team theme song. HAM will be performing this theme song during South Korea's friendly game against Ecuador in Seoul on May 16th. HAM meanwhile has scheduled their comeback for this July. http://www.youtube.com/watch?v=IfxrPYOmHcQ