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Vicki Gunvalson, star of "Real Housewives of Orange County" arrives for the 138th Kentucky Derby horse race at Churchill Downs Saturday, May 5, 2012, in Louisville, Ky. (AP Photo/Darron Cummings)

Gallery: Derby fashion and celebrities

May. 05, 2012 @ 06:55 PM

A variety of hats and celebrities dot Churchill Downs in Louisville, Ky., on Saturday for the 138th running of the Kentucky Derby.

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