The Purple One signs off on a 21-concert tour in London. Plus: Lindsay Lohan, Jessica Alba and more

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SILVER STREAK

Jennifer Lopez (in Marchesa) and Marc Anthony take a look back at "King of Fashion" Paul Poiret at the Metropolitan Museum of Art Costume Gala on Monday. Also in attendance at the star-studded affair: Jessica Simpson, Cate Blanchett and Jennifer Hudson, who performed at the event.