Earlier last month, we reported about MediaLine Entertainment's upcoming boy band, N-Train. For those unfamiliar with the label, it houses artists like Chae Yeon, VNT, and Lee Jung. Comprised of Yoojin (19), Soul-J (22), Jung Kyun (23), Seung Hyun (23), and maknae Sang Woo (19), these five boys have been training hard for the past two years. We saw a brief clip of a piano version of their debut song through their "M! Pick" show, and they've returned today with the official music video teaser for their title track, "One Last Cry." Check it out below! Tip: Jae