Dimitrios Kambouris/WireImage.com

BEST OF 2009: TOP TREND—CUTOUTSHudson made the most of her sleek figure (and her tan!) in a skin-revealing Rachel Roy gown

WHERE At the Cartier 100th Anniversary celebration in New York City on April 30th

CELEBRITY: Kate Hudson

DESIGNER: Rachel Roy

TREND: Black

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Kate Hudson

Kate Hudson in Rachel Roy