Forster Yeboah, known professionally as Kalusha, is a Ghanaian rapper based in Berlin, Germany, born in June 1980 in Accra, Ghana. He began recording gangsta rap tapes at 19, which led to a contract with Ypsilon-Recordz. His debut album Nicht zur Nachahmung empfohlen was released in 2004, featuring the notable track "Kein Buster". The album sold over four thousand copies by the end of 2004. Yeboah's criminal past, including a conviction for armed robbery, was used as a marketing tool by his label. In 2016, Kalusha released his second studio album Prototyp. Other notable releases include the singles "Kugeln kennen keine Rücksicht" (2004), "Die Einführung" (2004), and "Keine Liebe" (2015).