Governor Jerry Brown and Mayor Antonio Villaraigosa met the couple at LAX airport as the prince and his bride arrived in California from Canada.
The royals were immediately whisked off to a new media summit at the Beverly Hilton hotel.
The Duchess, who has never visited America before, wowed onlookers in an elegant lilac Roksanda Ilincic dress.
News choppers followed the couple’s motorcade, as fans on the sidewalks waved flags as William and Catherine passed by.
The couple spent its first evening in Southern California in Hancock Park, at the residence of the British consul general, and among the guests was Prince William’s pal David Beckham, who attended the royal wedding in April (11).
The Duke and Duchess will spend Saturday (09Jul11) at a charity polo match in Santa Barbara, California, before attending a star-studded BAFTA party.