In the artist's words:

With her sound between techno, ghetto tech and rap, sarah4k has quickly established herself as the distinctive voice of a new club generation. With her first techno EP G Dream Dance (2022, together with Lars Lichtgestalth), she already demonstrated that Something unique, loud and lasting is being created here. Her sound is multi-faceted, on the Wavybaby mixtape (2024) she reinterpreted past sounds and created club anthems, while on the Endstufe Tape (2025) she celebrated her love of ghetto tech and trap. Her lyrics are direct, often socially critical and empowering. Just like her sound, they move between dishing it out, freaking out and feeling yourself. 4K not only stands for "sharp, good quality, fat ass", but also for attitude and attitude, female empowerment, bass and pure escalation.