Hilton tries on a new look during her Hawaiian getaway. Plus: Britney Spears, Matthew McConaughey and more

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TO THE DOGS

Sarah Michelle Gellar gets a furry welcome – and some new headgear? – as she helps Harrods chairman Mohamed Al Fayed open the department store's annual summer sale in London on Sunday. "This is a dream come true," Gellar (in Jasmine Di Milo) told the crowd, adding, "I don't know about you, but I love shopping."