When you think Lee Sung Kyung and Nam Joo Hyuk stopped hanging out together after starring in their youth drama series "Weightlifting Fairy Kim Bok Joo," but thank heavens that they are still pretty CLOSE.
A fan shared a video on Facebook wherein Lee Sung Kyung attended as part of the audience, in her leading man's fan meeting.
I supposed she did originally went there unknown but Nam Joo Hyuk shouted her character's name in front of her loud and sweet fans' screams.
Nam Joo Hyuk said "Bok Joo Yah!"
See the video below: