BTS' RM reveals how the band shed their 'Tough' '2 Cool 4 Skool' image and the themes of their music

RM, Jin, Suga, J-Hope, Jimin, V, and Jungkook debuted in 2013 with the album 2 Cool 4 Skool. BTS even released their 'tough' debut album, the boys decided to create Most Beautiful Moment in Life song.