German Chancellor Angela Merkel (2ndL), Berlin Mayor Klaus Wowereit (3rdL) taste chocolate during the opening of the Gruene Woche (Green Week) Agricultural Fair in Berlin on January 18, 2013. This year the official partner country of the fair is The Netherlands. AFP PHOTO / JOHANNES EISELE
Wolfgang Niersbach (R), president of the German Football Association (DFB) hands over the cup to Klaus Wowereit, mayor of Berlin (L) during the DFB cup handover at Wappensaal of the Rote Rathaus on April 12, 2012 in Berlin, Germany.
Berlin Mayor Klaus Wowereit walks out of a bookshop past postcards during a walking tour in Charlottenburg district on August 6, 2011 in Berlin, Germany. Wowereit, a leading member of the German Social Democrats (SPD), is seeking reelection in city elections scheduled for September 18.
Head of adidas Originals Arthur Hoeld, adidas Managing Director Market Central Jimmy Weigl, Bread and Butter founder Karl-Heinz Mueller and Berlin Mayor Klaus Wowereit present the limited edition adidas Originals x BBB shoe at the Bread and Butter Trade Show charity stand on July 6, 2011 in Berlin, Germany.
Berlin's mayor Klaus Wowereit and partner Joern Kubicki attend the 'Mein Bester Feind' (My Best Enemy) Premiere during day seven of the 61st Berlin International Film Festival at Berlinale Palace on February 16, 2011 in Berlin, Germany.