Overview: The second in a week long series of shows from London leading up to the Royal Wedding of Prince William and Kate Middleton on April 29th. Tonight's program comes from Kensington Palace, Princess Diana's old home and features a lengthy conversation between Piers and one of his all-time heroes, Sir David Frost. David Reiss, the founder and managing director London's Reiss Clothing, from where Kate chose the dress her official engagement portrait, Ozwald Boateng (British fashion designer), Eric Deardorff (CEO, Garrard Jeweler) and Katie Nicholl (Piers Morgan Tonight Royal Correspondent) are also interviewed.