These K-Pop Idols Were Friends Even Before Debut Friendships that lasted to debut. Lists Koreaboo May 30th, 2019 The friendship has followed these K-Pop stars even as they followed their dreams to debut as an idol. 1. BTOB’s Hyunsik and EXO’s D.O 2. HIGHLIGHTS’ Yoseob and Gikwang 3. MAMAMOO’s Hwasa and Wheein 4. BLOCK B’s Park Kyung and Zico 5. GFRIEND’s SinB, ASTRO’s Moon Bin, and iKON’s Chanwoo 6. NCT DREAM’s Jisung and Chenle 7. GFRIEND’s Eunha and SinB Next Page