In the organizer's words:

Grossstadtgeflüster, the Berlin band that has been spanning the arc of good taste from both sides since 2003 and has made many, many, many people happy with its 1000 or so concerts, is not back, but still here.
With evergreens like "Fickt-Euch-Allee" or "Feierabend", they are constantly banging out hits that seem subcultural, but then ensure a good mood across generations and genres. There's always a bit of rave in there, a bit of pop, a bit of punk, a bit of hip hop, garnished with stylistic ricochets and U-turns, a lot of synths and a latent tendency towards eccentricity.