Blog Singles Koncept & J57 feat. Hollis – Porcelain [Audio] September 26, 2015 P.R. 0 Comments Hollis, J57, Koncept Koncept and J57 announced that their collabo project, now titled “The Fuel”, has a release date of November 20th. Listen to the project’s first leak “Porcelain” (featuring Hollis) below. ShareFacebookTwitterWhatsAppEmailPrint