German pop-punk outfit Killerpilze (Killer Fungus) formed in the Bavarian town of Dillingen an der Donau in 2002. Singer/guitarist Johannes Halbig assembled the original lineup, enlisting brother Fabian to play drums before recruiting lead guitarist Max Schlichter and bassist Andreas Schlagenhaft. Though at the time of its release the four members' ages still only ranged anywhere from 13 to 16, Killerpilze issued their low-key debut, Von Vorne Durch die Punkalle, in 2004. By 2005 the band had been signed to Universal Records and Invasion der Killerpilze appeared the following year, alongside the hit single "Richtig Scheiße." Next, in 2007, they issued their second major-label studio album, Mit Pauken und Raketen, but this was a year that also led to the departure of Schlagenhaft.