Duff and her little guy take a stroll around Los Angeles. Plus: The Backstreet Boys, James Franco, Alicia Keys and more

BAND TOGETHER

Backstreet's back! The boy banders – Kevin Richardson, A. J. McLean, Howie Dorough, Nick Carter and Brian Littrell – stay close at a suburban Philadelphia theater on Monday where they promoted their new single, "In a World Like This."



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