Triple7 4 Underrated Co-ed K-Pop groups 2 years ago The facet of co-ed group is a rare phenomenon in the K-Pop world. However, the existing co-ed groups have… 777 (TRIPLE 7) the KPOP group that debuts with Latin rhythms and a song in Spanish 3 years ago GH Entertainment's new supergroup 777 (Triple 7) made their debut with 7 members: 4 members of boy group B.I.G…