Marius Müller-Westernhagen, often known simply as Westernhagen, is a German rock musician and actor. Born on December 6, 1948, in Düsseldorf, he rose to fame in the 1970s and 1980s with his distinctive voice and rebellious style. His music blends rock, blues, and German lyrical themes, often touching on social and political topics. In addition to his successful music career, he has also acted in several German films. Westernhagen is considered one of the most influential figures in modern German rock music.