German rapper Bosca began his career as a teenager with the Frankfurt-based collective Ultrakaos. The rap group was closely associated with Frankfurt's Ultras scene (an organized group of fanatical football supporters), and released self-titled EPs in 2008 and 2009. Looking to expand his sound beyond the themes and plights of the Ultras, Bosca signed a deal with Butterfly Music, a label owned by fellow rapper and friend Vega. Kinokarte: Film Eines Lebens, a collaboration with rapper Face, was released in 2010. That same year, Vega separated from Butterfly Music following a dispute with business partners Emonex (M1X) and Bosca left as well, joining the roster at Vega's new label, Freunde von Niemand. His first proper solo album, Fighting Society, was released in 2011, followed in 2012 by König der Luft, the third installment of his Ultrakaos EP series. A second solo LP, Solange Es Schlägt, appeared in 2013. ~ Timothy Monger