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Stars Play the Field!

Kim Kardashian! Jonas Brothers! Reese! See who's coming out swinging – and scoring a workout. By Serena Kappes

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WHITNEY PORT

From The City back to her L.A. stamping grounds, Port shows she's a fashionista with power while hurling the first pitch during the Dodgers-Mets game. Maybe she prepped by studying her favorite exercise guide?

I Really Love My...Fitness Routine | Justin Timberlake

I Really Love My...Fitness Routine

Stars (Justin! Kate Hudson!) commit to their favorite exercise routine

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