BTS’ First Album: 2 Cool 4 Skool   The K-pop world exploded in the last decade, thanks to BTS. Their global phenomenon has brought K-pop to a new generation of listeners. But BTS has been at this for a long time. Their debut 2013 album is a testament to their potential and how far they’ve come. This album is a must-have for any serious ARMY. 2 Cool 4 Skool might have a different sound than expected from the present BTS. This hip-hop focused and R&B-infused album laid the groundwork for their growth. With their staple rap...