Koo Jun Yup started living independently since Kyunggi High School, and won the first place in a nightclub disco competition held during college. This was their chance, and at the end of 1989, he joined "WAWA" and officially entered the music industry. Later, both of them went to serve in the military and temporarily stopped their activities. After being discharged in 1993, Koo Jun Yup formed a male "duo", and Kang Won Rae became a backup dancer and actor, also serving as a backup dancer for Kim Gun Mo, Noisy Combination, and Laura...