National Day: Gala at the Opera in Monte Carlo, Monaco On November 19, 2006- [Getty Images]

MONACO - NOVEMBER 19: National Day: Gala at the Opera in Monte Carlo, Monaco On November 19, 2006-Prince Albert II of Monaco, Princess Caroline arriving at the Opera. (Photo by Pool Interagences/Gamma-Rapho via Getty Images)

Gamma-Rapho Pool Interagences