BTS Cypher Pt.3: Killer is a song by RM, SUGA, J-Hope of BTS featuring Supreme Boi. It was released on August 20, 2014 and appears as the seventh track for their first studio album Dark & Wild The song also appears as the seventh track on CD2 of BTS's first anthology album Proof. ORIGINAL TITLE: (i)BTS Cypher Pt.3: Killer (feat. Supreme Boi)(/i) RELEASED: August 20, 2014 FORMAT: CD, digital download, streaming LENGTH: 4:28 LANGUAGE: Korean LABEL: Big Hit Entertainment SONGWRITER(S): Supreme Boi, RM, SUGA, J-Hope PRODUCER(S): Supreme Boi Read more on Last.fm