'World star' Psy has finished his activities in Korea and is ready to go back overseas.

Today, before leaving for Australia, Psy commented, "I've said this before but thank you all so much for your support."

He continued, "It is lonely when going overseas, but due to everyone's support I know I am going to be ok. I hope that you all can support me regardless of numbers."

He is currently ranked at number 2 on the U.S. Billboard Main Single chart for 3 weeks in a row.

Psy will be appearing on "The X Factor Australia" on October 16 and then moving on to L.A.

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 also reached 400 million views on YouTube with his music video for "Gangnam Style."

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

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