Photos

Celebrity photos: May 28, 2011

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Nicole "Snooki" Polizzi walking to a tattoo parlor while out and about in Florence, Italy.

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UNESCO Director General Irina Bokova, surrounded by Brazilians personalities, entrepreneur Nizan Guanaes, (L) artist Vik Muniz, 2nd right and designer Oskar Metsavaht, pose with their UNESCO Goodwill Ambassadors certificate at the Unesco headquarters in Paris, France.

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Michelle Rodriguez poses on the Red Bull Energy Station during the Monaco Formula One Grand Prix at the Monte Carlo Circuit in Monte Carlo, Monaco.

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Victoria Justice is all smiles after performing a live concert for her TV show "Victorious" at the Avalon Theatre in Los Angeles.

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Billy Zane goes for a bike ride in West Hollywood.

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Joanna Krupa arriving for dinner at a private home in Beverly Hills.

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Katherine Heigl out and about in Los Angeles.

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Lady Gaga kicks off "Good Morning America's" 2011 Summer Concert Series, performing live in Central Park.

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Liv Tyler wearing slippers and zebra stripes pants outside her home in downtown Manhattan.

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Rihanna performing on the "Today" show's Toyota Concert Series at Rockefeller Center.

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Sarah Silverman out strolling in Los Angeles.

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Elle Mcpherson leaving the Box club in SoHo after attending a private party in London.

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Justin Bieber and Selena Gomez enjoying the beach in Hawaii.

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Steven Spielberg carrying a script arrives at the Greenwich Hotel in New York.

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Yoko Ono goes for a walk near her home in New York.

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Jenny McCarthy poses for pictures inside a crib during the launch of her baby line Too Good by Jenny McCarthy at the Burlington Coat Factory in Harwood Heights, Ill.