South Korea is waging war with pop music.



After the country formally accused North Korea of launching the torpedo that sunk their warship Cheonan, South Korea has declared psychological warfare in retaliation.



Their first missive into the hermit kingdom was a pop song.



Ended a six-year suspension against state-sanctioned propaganda, the South sent the message across the border through the airwaves.



Before airing a rebuke from South Korean President Lee Myung-bak, the broadcast features K-pop girl group 4minute singing their song "HuH (Hit Your Heart)."



The song was specifically chosen to irk the repressive regime with its liberating lyrics: "Baby, you're kidding me? I do what I want and I do it my way."



The two countries, officially still at war, are divided by a 155-mile Korean Demilitarized Zone. The South set up speakers to blast the propaganda across the DMZ.



In a move reminiscent of the 1984 movie "Footloose," the North Korean capital of Pyongyang has vowed to destroy any speakers set up along the border.