SEE ALSO: g.o.d's Kim Tae Woo to make a cameo on 'My Lovely Girl'

Kim Tae Woo sings "Only You" which is composed by Jeon Hae Sung and written by Choi Jae Woo, and is a medium-tempo pop song that expresses the ups and downs of love.

Also stay tuned for Kim Tae Woo's cameo later today!