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BERLIN - NOVEMBER 16:(EDITORS NOTE: Entertainment Online Subscriptions GLR Included) Berlin major Klaus Wowereit and boyfriend Joern Kubicki attend the AIDS Gala 2009 at theater des Westen on November 16, 2009 in Berlin, Germany.

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BERLIN - NOVEMBER 09: A woman holds a rose and a brochure that reads: '20 Years Fall of the Wall, November 1989' while attending a commemorative ceremony at a still-existing section of the Berlin Wall at the Bernauer Strasse memorial on the 20th anniversary of the fall of the Wall on N...

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BERLIN - NOVEMBER 07: (EDITORS NOTE: Entertainment Online Subscriptions GLR Included) Berlin major Klaus Wowereit and boyfriend Joern Kubicki attend the '16th Aids Gala' at Deutsche Oper on November 7, 2009 in Berlin, Germany.

Berlin Mayor Klaus Wowereit (R) and German SPD Social Democrat Foreign Minister Frank-Walter Steinmeier arrive for the opening of an outdoor exhibition marking the 20th anniversary of the political movement in East Germany leading up to the collapse of the East German state in Berlin Ma...

Berlin mayor Klaus Wowereit (R) talks to Air Berlin CEO Joachim Hunold (L) during his visit at the ITB tourism fair in Berlin, March 11, 2009. The world's biggest travel fair ITB kicks runs from today until March 15.

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Berlin's mayor Klaus Wowereit (L) and Angolan President Jose Eduardo Dos Santos poses for a photo in front of Berlin's landmark Brandenburg Gate on February 27, 2009.

Getty Images 9 months ago

Berlin's mayor Klaus Wowereit (L) and Angolan President Jose Eduardo Dos Santos poses for a photo in front of Berlin's landmark Brandenburg Gate on February 27, 2009.

AP Photo 11 months ago

Berlin's Minister of Cultural Affairs, Bernd Neumann, left, and Berlin's Mayor Klaus Wowereit, right, attend a ceremony and the official beginning of the building of the Holocaust Memorial for the murdered Sinti and Roma people near the Reichstag in Berlin, Friday, Dec. 19, 2008.

Berlin Mayor Klaus Wowereit gives a speech during the opening of an outdoor exhibition marking the 20th anniversary of the political movement in East Germany leading up to the collapse of the East German state in Berlin May 7, 2009.

Berlin Mayor Klaus Wowereit, Bavarian state prime minister Horst Seehofer and Brandenburg state prime minister Matthias Platzeck (L-R) arrive for a Prime Ministers Conference in Berlin March 26, 2009.

AP Photo 9 months ago

Klaus Wowereit, Mayor of Berlin, center, poses with two dancers at the stand of Mexico during the opening walk at the ITB tourism fair in Berlin, Germany, Wednesday, March 11, 2009.

Berlin mayor Klaus Wowereit tries salt before drinking tequila during his visit at the ITB tourism fair in Berlin, March 11, 2009. The world's biggest travel fair ITB kicks runs from today until March 15.

Berlin mayor Klaus Wowereit wears a Mexican hat during his visit at the ITB tourism fair in Berlin, March 11, 2009. The world's biggest travel fair ITB kicks runs from today until March 15.

Berlin mayor Klaus Wowereit wears a Mexican hat during his visit at the ITB tourism fair in Berlin, March 11, 2009. The world's biggest travel fair ITB kicks runs from today until March 15.

Norwegian Foreign Minister Jonas Gahr Stoere (L), Mayor of the Norwegian municipality Frogn, Thore Vestby (2nd L), German Foreign Minister Guido Westerwelle (3rd L) and Berlin's Mayor Klaus Wowereit (R) pose for pictures in front of a Norwegian sponsored Christmas tree at the Brandenbur...

People walk near trees illuminated with Christmas lights at Under den Linden, near the Brandenburg Gate in Berlin November 27, 2009. Berlin's mayor Klaus Wowereit on Friday switched on Christmas decorations, illuminating 270 trees with lights stretching a total of 80 km (50 miles).

People walk near trees illuminated with Christmas lights at Under den Linden, near the Brandenburg Gate in Berlin November 27, 2009. Berlin's mayor Klaus Wowereit on Friday switched on Christmas decorations, illuminating 270 trees with lights stretching a total of 80 km (50 miles).

People walk near trees illuminated with Christmas lights at Under den Linden, near the Brandenburg Gate in Berlin November 27, 2009. Berlin's mayor Klaus Wowereit on Friday switched on Christmas decorations, illuminating 270 trees with lights stretching a total of 80 km (50 miles).

A man dressed in a snow fairy costume jokes with Berlin's Mayor Klaus Wowereit (R) before Wowereit switches on the illumination of a Christmas tree in the Gendarmenmarkt Christmas market in Berlin November 23, 2009.

People wait for Berlin's Mayor Klaus Wowereit (not in picture) to switch on the illumination of a Christmas tree in the Gendarmenmarkt Christmas market in Berlin November 23, 2009.

Berlin's Mayor Klaus Wowereit (R) hits a button to switch on the illumination of a Christmas tree in the Gendarmenmarkt Christmas market in Berlin November 23, 2009.

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BERLIN - NOVEMBER 18: Suzy Menkes and Berlin's mayor Klaus Wowereit attend the IHT (International Herald Tribune) Techno Luxury Conference cocktail at The Corner on November 18, 2009 in Berlin, Germany.

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BERLIN - NOVEMBER 17: Claudia Schiffer and Berlin Mayor Klaus Wowereit attend the IHT (International Herald Tribune) Luxury Conference cocktail by IMG at Grill Royal on November 17, 2009 in Berlin, Germany.

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BERLIN - NOVEMBER 17: (L-R) Berlin Mayor Klaus Wowereit, Suzy Menkes and Claudia Schiffer attend the IHT (International Herald Tribune) Luxury Conference cocktail by IMG at Grill Royal on November 17, 2009 in Berlin, Germany.

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BERLIN - NOVEMBER 17: (L-R) Christian Kurtzke (Meissen) and Berlin Mayor Klaus Wowereit attend the IHT (International Herald Tribune) Luxury Conference cocktail by IMG at Grill Royal on November 17, 2009 in Berlin, Germany.