Rio Reiser, German singer-songwriter (b. 1950)
Ralph Christian Möbius (9 January 1950 – 20 August 1996), known professionally as Rio Reiser, was a German musician and the singer of rock group Ton Steine Scherben. He supported squatting in the early 1970s and later the green political party Die Grünen. After the German reunification, he joined the Party of Democratic Socialism.