NICOLE KIDMAN TOOK A STROLL IN L.A. WITH HER BODYGUARD ON SATURDAY. THE ACTRESS IS KEEPING HER HOPES HIGH FOR HER HUSBAND, KEITH URBAN, WHO'S IN REHAB FOR ALCOHOL ABUSE. URBAN WILL BE NOTICEABLY ABSENT FROM TONIGHT'S CMA AWARDS (WHERE HE WAS SCHEDULED TO PERFORM) IN NASHVILLE...

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