2:56 석매튜 (ZEROBASEONE), 박건욱 (ZEROBASEONE) - Backpacker (스터디그룹 OST) [Music Video] 2:55 OST Study Group (스터디그룹) | (ZEROBASEONE - Backpacker MV Fanmade)] 2:55 MATTHEW & GUNWOOK(ZB1)'Backpacker(ost study group)'[color coded lyrics] 2:56 Seok Matthew (ZEROBASEONE), 朴乾旭 (ZEROBASEONE) - BACK PACKER (華納官方中字版) 2:58 석매튜 (ZEROBASEONE), 박건욱 (ZEROBASEONE) - BACK PACKER 스터디그룹 OST Part.1 2:54 Matthew & Gunwook (ZEROBASEONE) - Backpacker (Ost. Study Grup) Easy Lyrics 3:11 Study Group OST 'Back Packer' Full version (Matthew & Gunwook ZB1)