Singer Rain has been building a lot of interest in his new single, "Busan Woman", which was created especially for his upcoming concert tour since it'll be his last before he departs for his military duties. The new song was finally released on August 16th, and fans flocked to digital music sites to check out their idol's special treat for them. Rain will not be promoting the song through music programs, and will only be performing it through his nationwide tour. Check out "Busan Woman" below! [gallery columns=4]