PHILADELPHIA - JANUARY 27:  Britain's Duchess of Cornwall Camilla Parker-Bowles greets patrons at the 150th Academy of Music Anniversary Concert January 27, 2007 in Philadelphia, Pennsylvania. Britain's Prince Charles, Prince of Wales and Duchess of Cornwall Camilla Parker-Bowles arrived in the U.S. Friday, and will travel by train to New York City on Sunday where the Prince will receive the award of Global Environmental citizen from former U.S. Vice President Al Gore.  (Photo by Steven M. Falk-Pool/Getty Images)