Seo Kang Joon's employee ID card was revealed, catching much attention.

Yesterday, Seo Kang Joon's agency Surprise posted on their Facebook, "VS's new employee Gook Seung Hyun! Please love them both. 'Cunning Single Lady' fighting!" along with a picture.

In the picture, Seo Kang Joon was holding up his employee ID card that he uses for his current drama.

Internet users who saw this commented, "He looks so young", "So good-looking", etc.

Photo Credit: Surprise Facebook