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The rapper shoots a commercial in Los Angeles poking fun of himself. Plus: Katie & Posh, Scarlett Johansson and more

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COMMON GROUND

Aussie actress Sophie Monk, who is engaged to Good Charlotte's Benji Madden, hooks up with Nicole Richie for some lattes and shopping in Los Angeles on Saturday. Richie is also romancing a Madden brother – Benji's twin Joel, whom she's been seeing since December.

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