Moscow Mayor Yuri Luzhkov (R) dances with Tatiana Pecherikova, administrative director of British Telecom Russia, during the first "Moscow's Ball" in Vienna February 2, 2007. REUTERS/Herwig Prammer (AUSTRIA) 

A musician of the Military Orchestra of Moscow's garrison plays the tuba during the first "Moscow's Ball" in Vienna February 2, 2007. REUTERS/Herwig Prammer (AUSTRIA) 

The great ballroom at Vienna's city hall is seen during the first "Moscow's Ball" in Vienna February 2, 2007. REUTERS/Herwig Prammer (AUSTRIA) 

Debutants dance during the first "Moscow's Ball" in Vienna's city hall February 2, 2007. REUTERS/Herwig Prammer (AUSTRIA) 

Anastasia Gariatsheva (2nd R) and Denis Medwedev (R) of the Bolshoi Ballet perform at the opening of the first "Moscow's Ball" in Vienna's city hall February 2, 2007. REUTERS/Herwig Prammer (AUSTRIA) 

Debutants dance during the first "Moscow's Ball" in Vienna's city hall February 2, 2007. REUTERS/Herwig Prammer (AUSTRIA) 

Moscow Mayor Yuri Luzhkov (L) speaks next to Vienna Mayor Michael Haeupl at the opening of the first "Moscow's Ball" in Vienna February 2, 2007. REUTERS/Herwig Prammer (AUSTRIA) 

Debutants wait for the opening of the first "Moscow's Ball" in Vienna's city hall February 2, 2007. REUTERS/Herwig Prammer (AUSTRIA) 

Debutants dance during the first "Moscow's Ball" in Vienna's city hall February 2, 2007. REUTERS/Herwig Prammer (AUSTRIA)