Psy invited the 60,000 people in the audience to do the horse riding dance with him during his performance of "Gangnam Style."

Today (October 4), Psy held a free concert called "International Singer Psy, Seoul Style Concert" at the Seoul City Hall Square.

In the middle of his concert, Psy suddenly took out his earphones and said, "I can't hear your voice when I'm wearing earphones. Instead, I will wear these" and took out his sunglasses. People in the audience responded with deafening roars of excitement as they realized that the next song was "Gangnam Style."

Before his performance of "Gangnam Style" Psy added, "Today's horse riding dance could be added to the Guinness Book of World Records so please enjoy this performance with me" and heated up the crowd even more.

Psy, a K-Pop singer who is now an international star in the midst of a global takeover, arranged the "International Singer Psy, Seoul Style Concert" as a sign of gratitude for his fans in Korea. Psy's concert was broadcasted live though his official YouTube channel worldwide.