The pop star adds to her body-art collection in Los Angeles. Plus: Lindsay Lohan, Katie Holmes, Nick Lachey and more


Lindsay Lohan gets in step on the Glendora, Calif., set of her film I Know Who Killed Me on Tuesday. The actress plays a stripper in the thriller, and has been taking pole-dancing lessons to prepare for the role. "I have bruises all over," Lohan told PEOPLE. "That's why I haven't worn shorts."

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