Britney Spears looked in glowing form as she hosted a charity dinner Wednesday at a private house in Beverly Hills to help residents of her native Louisiana made homeless by Hurricane Katrina. Spies said the singer, who dazzled in a tight dress and $250,000 of Geraldo Jewelry, “held hands with her boyfriend, Jason Trawick,” all night. Her dad, Jamie Spears, helped write the menu and cook the meal. Stars at the event, in aid of the St. Bernard Project, which helps rehouse Katrina victims, included Kim Kardashian, Hilary Duff, Kelly Osbourne and Selena Gomez.