The Stieber Twins are a duo from Heidelberg, Germany, consisting of the brothers Martin (Marshall Mar, a.k.a. Martin Jekyll) and Christian (Luxus Chris a.k.a. Christian Hyde). They are known as graffiti artists, breakdancers, rappers, hip hop producers and DJs. Although they have only released one rap album, they are well respected in Germany because of their lyrics, which are critical of the hip hop business and politics, all of which are performed in the distinctive accent of the Heidelberg, Germany area. In 2006, the twins performed at the Hip Hop Kemp Festival in the Czech Republic.