On Monday, K-pop fans were treated to a significant surprise: mono., a new project from RM a.k.a. Rap Monster, the bandleader of BTS. Stream it below on SoundCloud. The seven-track release came with an animated music video for its gloomy closing track "forever rain," streaming above. mono. is composed by RM and co-produced by RM, Pdogg, and Hiss noise. It's the second solo project from RM after 2015's self-titled RM, and comes after BTS's Love Yourself: Answer, a record-breaking repackaged version of their album Love Yourself: Tear. BTS's movie Burn The Stage is out November 15.