Cassandra Steen is a German contemporary R&B singer known for solo hits such as "Darum Leben Wir" as well as guest features on hits by Bushido, Xavier Naidoo, and others. Born on February 9, 1980, in Ostfildern-Ruit, Baden-Württemberg, she made her recording debut in 1997 on the song "Telefonterror" from the album Quadratur des Kreises by German rap group Freundeskreis. A few years later she emerged as a member of the group Glashaus on the label Pelham Power Productions (3P). Comprised also of producers Moses Pelham and Martin Haas, Glashaus made their commercial debut in 2001...