01099 is a German rap group from Dresden. The name refers to the postal code of Äußere Neustadt, the area of the city the rappers are from.
The group consists of four members: Dani, Gustav, Paul and Zachi.
From Wikipedia (https://en.wikipedia.org/wiki/01099) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/legalcode)