‘1N2D’ season 4 with new casts confirmed to air in December – K-POP, K-FANS ‘1N2D’ season 4 with new casts confirmed to air in December Article: [Exclusive] ‘1N2D’ Refreshed, from oldest hyung Yeon Jung Hoon to maknae Ravi Source: Star News via Naver (Season 4 of 1N2D is to start […]