The propaganda playlist: South Korea blasts the north with...

In the days after the surprising claim that North Korea had exploded a nuclear device -- one they claim was a hydrogen bomb -- world powers have scrambled to settle on the best response.

While economic sanctions have been threatened from all corners of the globe, North Korea's closest neighbor, South Korea, on Friday took a more direct route.

They set up speakers and began broadcasting propaganda.

The broadcasts specifically criticize North Korean leader Kim Jong Un and, in a move that would be applauded by any teen who wants to aggravate his parents, and blasts pop music – known as K-Pop -- north across the border.

The broadcasts, which North Korea considers an act of war, are being played against the soundtrack of a girl band, a boy band, and a solo artist whose YouTube song has been seen by more than 7 million viewers.

So what’s being played? Well, it goes something like this:

APink, “Let Us Just Love”

“Let Us Just Love” was the soundtrack for a South Korean TV series called, “Protect the Boss.” The show is about a “young man who is useless at his job.” Shade intended, Kim Jong Un.

Lee Ae-rain, "100 Years of Life"

The chorus of the song is from a famous Korean folk song called Arirang. This video has been seen by more than 7 million people. It mentions a “Death Angel.” A lot.