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MONTE-CARLO, MONACO - JULY 25: In this handout provided by Le Palais Princier, Princess Charlene of Monaco and Prince Albert II of Monaco dance during the Monaco Red Cross Gala on July 25, 2015 in Monte-Carlo, Monaco. (Photo by Handout/Le Palais Princier via Getty Images)

MONTE-CARLO, MONACO - JULY 25:  In this handout provided by Le Palais Princier, Princess Charlene of Monaco and Prince Albert II of Monaco dance during the Monaco Red Cross Gala on July 25, 2015 in Monte-Carlo, Monaco.  (Photo by Handout/Le Palais Princier via Getty Images)