I've seen this for some time. And I kept repeating this video not because the performance is very good. But just because the guy is SUPER GOOD. Now I'm super in love with this guy now! HIS VOICE!

The part that I really love was at the back. Taeyeon was off with the harmonize. So it wasnt the most perfect performance as a whole. But the guy is really good. A fan of Park Hyo Shin now! Totally!