After the regal wedding and the huge reception hosted by The Queen at Buckingham Palace, Kate and Prince William retreated to Prince Charles's home to rest and freshen up.
The couple re-emerged later in stunning outfits, ready for a dance party!
The second party was hosted by the Prince of Wales, Prince Charles for the newlyweds.
Will was suave in a black tux, while Kate was dazzling in another Alexander McQueen dress.
The dress, which could easily be described as a second wedding dress, is no doubt fit for a princess ... in this case fit for a "Duchess"!