The pictures on the film set for a music video with Yoo Seung Ho and So Ji Sub were recently revealed.

So Ji Sub is to appear as the main male character in a music video for his mini album, "6 O'Clock...Track Field." Yoo Seung Ho is to act as a younger version of So Ji Sub. They met at a studio as they were filming for the music video. They filmed a scene where Yoo Seung Ho, meets Park Shin Hye at a club, for six hours.

The scene with So Ji Sub and Yoo Seung Ho were completely seperate, so there were not many chances for the two actors to meet. So Ji Sub finished his scene and went to visit Yoo Seung Ho with snacks. He went to thank Yoo Seung Ho for appearing in the music video, although he is busy with acting in a drama.

So Ji Sub prepared a red heart shaped chocolate for Yoo Seung Ho, and Yoo Seung Ho said, "am I getting a love confession with that red heart?"

The whole set was filled with laughter. They continued to have a conversation about acting.