KAJ is the stage name of Kajsa Stina Hallberg Adu, a Swedish-born artist known primarily within electronic and synth-pop circles. Emerging in the 2010s, KAJ blends minimalist electronic production with pop songwriting, often featuring clear, melodic vocals and polished synth textures. Her work draws on contemporary electro-pop and dance influences, emphasizing concise song structures, atmospheric synth layers and rhythmic clarity. KAJ’s recordings and performances reflect a modern pop sensibility with a focus on mood and sonic detail rather than expansive improvisation, positioning her within the Scandinavian electronic-pop tradition.