Last night classy girls joined Derek Blasberg at Mr. Chow in Beverly Hills to celebrate the launch of Classy: Exceptional Advice for the Extremely Modern Lady.

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This highly anticipated guidebook to "stop being a tramp, and start being a lady" doesn't disappoint. From witty remarks, hilarious pictures and actually useful advice, Blasberg created this book with an insider's point of view.

Nicky Hilton, Devon Aoki, Jackie Collins, Malin Akerman, Thomas Jane & Patricia Arquette, and Nicole Richie & Joel Madden attended the elegant affair.

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Devon Aoki, Thomas Jane

Jackie Collins, Malin Akerman

Patricia Arquette, Thomas Jane, Nicole Richie

[Pictures via pacificcoastnews.com]