Psy began his concert with some of his hit songs, "Right Now" and "Celebrity."

Many fans young and old came to attend this event. Even foreign fans were seen in the crowd, some as far from Brazil.

Psy also expressed his thanks as he gave shout outs to all his fans watching at home through live streaming.

The city will dispatch police squads for the occasion that is expected to be an event for approximately 40,000 fans. Public transportation is scheduled to extend its running hours to 2AM in order to create a safe and convenient concert experience for Psy's fans.

Psy's Passionate Performance with 80,000 Fans at Seoul City Hall [PHOTOS]

KpopStarz will be covering the concert live with real time articles and videos, which will all be released via Psysworld.com.

Psysworld.com was launched last week as a part of KpopStarz's effort to specifically cover news of Psy and his performances. Psysworld.com also provides an organized section dedicated to parody videos created by Psy's fans as well as a section for celebrity comments regarding Psy.

His live concert will also be aired on his official Youtube channel here.