Alba radiates glamour in Gucci at her London Fantastic Four premiere. Plus: Britney plays switcheroo, Rosie gets to work and more

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BRASSY SHOW

Jessica Alba rises to the gold standard of Hollywood glamour – clad head to toe (shoes included!) in Gucci – Tuesday for the London premiere of Fantastic Four: Rise of the Silver Surfer. On the carpet, Alba told PEOPLE she was just glad not to be in the jumpsuit she wears in the film. "It was uncomfortable," she says, "like wearing pantyhose everywhere."