Kollegah began his rap career online. He took part in a platform called ReimligaBarrle Arena (RBA) and won eleven out of the fourteen times he competed. After graduating, he decided to dedicate his life to rap, and in 2013 he received a Gold Award for his collaboration on the album *Jung, Brutal, Gutassenhend 2* with Farid Band. In December 2014, with Zuhältertape Vol. 4, he reached number 1 in the charts in its first week.