Frankfurt am Main-based German rap duo Celo & Abdi formed in 2008 around the talents of Erol Husein-çehaji-ç (of Bosnian heritage) and Abderrahim el Ommali (of Moroccan heritage), both aspiring rappers who met and became friends while working together in a call center. In 2011 the pair released a mixtape, Mietwagentape, which found success and eventually led to a record deal with Azzlackz. Their debut album, Hinterhofjargon, arrived the following year and featured guest appearances from fellow regional rappers Haftbefehl, Veysel, and Xatar, among others. The duo's second Azzla...