PLATINUM78 (P.L.T78) Members Profile PLATINUM78 (플래티넘78) [formerly known as PLATINUM/P.L.T (플래티넘)] is a South Korean boy group that debuted on January 9, 2019 under IN MEDIA A&D. In late 2019, the entire line-up was replaced with five new members and their name was changed to PLATINUM78. PLATINUM78 Official Accounts: Instagram: @platinum78_official Twitter: @platinum78_official YouTube: PLATINUM78 … Continue reading PLATINUM78 (P.L.T78) Members Profile