Last year we predicted the Royal Wedding would be a major influence on baby names (though no one realized that Prince Harry’s sister-in-law, Pippa, would be the one to spark a naming frenzy). This year, U.S. parents are staying put in the U.K., but are looking beyond the British monarchy for inspiration. "A lot of names that have been popular in Britain -- like Millie and Poppy for girls, and for boys, Henry, Theo and Oliver -- sound fresh to our American ears," says Amanda Elizabeth Barden, author of Baby Names Made Easy. Celebs who like the British vibe? Actress Sarah Lancaster, who named her son Oliver and Tori Spelling, who named her youngest daughter Hattie.