Cassandra Steen (born February 9, 1980 in Ostfildern-Ruit, Baden-Württemberg) is an Afro-German singer, also known as lead singer of the band Glashaus. Cassandra Steen was born in Ostfildern-Ruit near Stuttgart, Germany in 1980. At the age of 17 the singer gained first prominence when she was featured on the 1997 album "Quadratur des Kreises" by Freundeskreis, with whom she toured through Germany, Austria and Switzerland for a few years. In 1998 Steen was signed by Booya Records, but due to musical differences she soon asked for a release.