The Spice Girl and husband David attend a star-studded fete in Beverly Hills. Plus: The Jonas Brothers, Ashlee & Pete, Mary-Kate Olsen and more

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THE HAPPY FAMILY

Mom-to-be Ashlee Simpson and fiancé Pete Wentz are aglow in New York City as Ashlee shows off her new engagement ring, while her Fall Out Boy beau rests his hand near her tummy. A source close to the Simpson family told PEOPLE this weekend that the pair are planning to marry in La Jolla, Calif., in May.