The director of the movie 'G.I.Joe 2' Jon Chu and actor Lee Byung Hun will be attending Psy's concert together.

Director Jon Chu and Lee Byung Hun will be attending Psy's concert tomorrow being held in Seoul.

Today, Jon Chu posted on his Twitter, "This guy is making me go to Korea... Sorry mom and dad" along with a picture taken with Justin Bieber's manager Scooter Braun in the airplane.

Jon Chu had visited Korea last month for 'G.I. Joe 2' promotion. He had said, "I am acquaintances with Psy. I will be returning to Korea for his concert on April 13th."

Lee Byung Hun's agency BH Entertainment also revealed today, "Lee Byung Hun was invited by Psy so he decided to go to his concert."

Today, Psy released his new song 'Gentleman.'

Photo Credit: OSEN