Prince William replied by returning the love and wishing the couple good luck and then went on to say how much he enjoyed his trip to Canada.
"It's been an amazing few days," he said according to the Mail. "We've been so lucky with all the incredible places we've been able to see and we've met so many fascinating people."
Kate delightfully mingled with guests and flaunted a silk, emerald green Diane von Furstenberg belted dress with her reportedly favorite beige platform stilettos.
Prince William chatted with Stephen Fry, who is currently filming in Los Angeles. The two exchanged compliments about each other's wardrobe.
The Royals are expected to play in a charity polo match today at the Santa Barbara Polo Club.
Proceeds will go to the American Friends of the Foundation of Prince William and Prince Harry. The duchess will also give out prizes during the event.
A red carpet event at LA's Belasco Theatre awaits the Royal couple later tonight.
A black-tie British Academy of Film and Television Arts dinner will be held where Prince William is scheduled to give a speech at the gala.
Nicole Kidman, Jennifer Lopez, Tom Hanks, and Jack Black are among the VIPs on the guest list, E!Online reported.