German rapper. The name "Sido" is an abbreviation which stands for "superintelligentes Drogenopfer" ("super intelligent drug victim"), or "Scheiße in dein Ohr" ("shit into your ear") in earlier times. Würdig distinguishes himself by using provocative and aggressive lyrics. After his breakthrough with his debut album Maske in 2004, Würdig was always seen wearing a silver skull mask until 2005. Since then he made no use of the mask anymore and, as he has stated in various interviews, handed it to his former boss Specter. Würdig's career began in 1997, as one half of duo Royal TS (now A.i.d.S), with B-Tight and both got later signed to Berlin hip hop label Royal Bunker and then to Aggro Berlin in 2001.