Sabrina Setlur

Sabrina Setlur (born January 10, 1974), formerly known as Schwester S., is a German rapper, songwriter and occasional actress. Her debut was in 1995 under the guidance of 3p Records executive and mentor Moses Pelham, producer of her breakthrough single "Ja Klar." Following the drop of her pseudonym and a number-one single, "Du Liebst Mich Nicht," in 1997, a series of hit records established her position as Germany's "best known and highest-selling female rap act" to date.

source: Wikipedia