I am unable to find much information available about this guy, Seo In Guk (서인국). I was just skipping around on Youtube and came across this music video of his. It appears to just be a long commercial for a new cell phone in Korea. But I actually enjoyed the song and the video and thought the modernization was clever with the use of cell phones, F1 racing, and coffee shops. The video is a remake of the 1984 song "Take on Me" by the Norwegian pop band A-ha. Yes, the original was about a girl getting sucked into her sketch book, and while in the remake a girl is looking at sketches on her phone is a little strange, I'm still into it.
Here is his remake, Take (테이크):
Here is the original: