As what he said in an interview, it's all work for him all throughout the year.
Just tonight, dressed in a stylish sleeveless top, light pants, sneakers and cap Hyun Joong left again Seoul and this time he went to Japan.
Here is a video of him at Haneda Airport just a few hours ago. Much thanks to s2shiba and for _tomato99 for the tip in Twitter.
Here is another one courtesy of anpan2H.