B1A4's guerrilla concert was held at Hong Dae playground on Jan. 4. B1A4 was not able to relax at all due to lack of promotion. However, despite the cold weather, 2,000 fans came to see the concert, proved big popularity of B1A4.

Fans, as soon as the event was unveiled, updated the situation on the blogs and twitter. The playground was packeded 3 hours before the concert started. 

The whole story of B1A4's guerrilla concert at Hong Dae will be covered on Mnet 'Wide Entertainment News' on Jan. 6.

Photo: Mnet