Blair and 5-month-old son Arthur laugh it up in Beverly Hills. Plus: Russell Brand, Rihanna, Katy Perry and more
Credit: GSI Media
Updated: Tuesday Jan 17, 2012 | 05:00 PM EST
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Look who's got a case of the giggles! Selma Blair shares a hearty laugh with 5-month-old son Arthur in Beverly Hills on Monday.
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