The boys of the JTBC program, 'SNSD and the Dangerous Boys' successfully put on their first guerrilla concert.

Ahead of their Street Jam Dance Competition scheduled to take place on February 5th, the boys put on a surprise guerrilla concert at an Arts College in Seoul.

Even before the performance began, a large crowd began to gather, waiting to see the boys perform on stage. The throngs of people caused so much commotion in the area the show was actually postponed for some time.

This was the boys' first official live performance and they seemed to look a bit awkward and nervous, but they impressed the audience with their unexpected talent. They practice 6 hours a day each day to perfect the moves for the Street Jam Dance Competition, and it truly showed.

But instead of all five members, only four stepped forward on stage making the fans curious as to where Hwang Yong Hyun was.

According to a staff member, "All five of them were scheduled to stand on stage together, however, Hwang Yong Hyun had some personal problems and therefore could not be there with them. I know many people must be curious to know why, but we ask that you watch the program this week to find out."

The next episode airs on January 29th at 7:30PM.

Source & Image: OSEN via Nate