Psy's 'CY X PSY' Concert was held today at the Jamsil Stadum in Seoul.

This concert was held in order to celebrate the new and updated Cyworld app. 

Psy has recently ranked number 1 on the Austrialian ARIA Chart.

Psy has recently become a global sensation with his song, "Gangnam Style." He has ranked number 1 on iTunes in 30 countries and has ranked number 2 on the U.S. Billboard Main Single Chart 'HOT 100'. 

He has appeared on many shows such as the "Ellen Show" and "SNL" and featured on news programs such as NBC and CNN.

His music video has been the most viewed on Youtube as well with over 300 million views.

He has also recently signed a contract with Justin Bieber's agency and plans to release his first U.S. single sometime in November.