Jaden Smith and Kesha Partied This Week

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This week's parties weren't just in Paris. Kesha, Anjelica Huston, and Pamela Anderson celebrated PETA's 35th anniversary in L.A. on Wednesday, and the next night, Lena Dunham attended a Planned Parenthood event in a thematically appropriate sweater. Meanwhile, in London, Cindy Crawford celebrated her book launch with George Clooney and his tequila brand. Click through the slideshow to see those and more of this week's best parties, including Jaden Smith, Christina Hendricks, and Joseph Gordon-Levitt. 

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