Lee Joon, who is currently thrilling viewers with his portrayal of a psychopath in 'Gabdongi,' was spotted studying the script for his current drama. �OSEN captured his diligence on camera, showing him to be greatly engaged in reading - that is until he spotted the camera on him and burst into his boyish smile (not the creepy psychopathic one).�

SEE ALSO: "I was really beaten a lot," Lee Joon recalls being a victim of school bullying

In his interview with OSEN, Lee Joon said, "I have no concerns nor do I feel any burdens about my image as an idol. �I'm just looking for what I want to do and for fun things."

Are you liking his portrayal in the drama so far?