JB Jus2 KOREAN Yugyeom (유겸) Jus2 – LONG BLACK LONG BLACK “LONG BLACK” FOCUS 2019.03.05 JB, Yugyeom Lyrics/작사: 유겸 (GOT7), Karla Maria Vel Composer/작곡: Reone, 유겸 (GOT7), EFFN Arranger/편곡:…