1TYM Members Profile: 1TYM Facts 1TYM (원타임)(One Time) was a South Korean boy group under YG Entertainment, that consisted of 4 members: Teddy Park, Jinhwan, Baekkyung, Danny. 1TYM officially debuted on November 5, 1998, on Mnet Rhythm Heaven. 1TYM went on hiatus in 2006, and their latest appearance as a group was in 2008, as … Continue reading 1TYM Members Profile