Source: http://www.allkpop.com
On the very day of its release, Kim Hyun Joong's new Japanese single "Hot Sun" topped Oricon's Daily Singles Chart!
Released on June 18, "Hot Sun" proved to be hotter than the sun as it sold a whopping 64,335 copies within the very first day. Congratulations to Kim Hyun Joong on this accomplishment and check out this hit single when you can!