debuts Model Choi Han-Bit Debuts in New Girl Group 9 years ago Choi Han-Bit has joined a girl group. Gaon Entertainment’s three-membered group, Mercury, debuted March 6, 2016 with their single “Don’t… 2015’s Best Debuts You May Have Missed 9 years ago 2015 gifted the K-Pop world with well over 100 group debuts. Of course, it’s safe to assume many of these…