Blair and her baby boy Arthur slide on by at a farmers market in L.A. Plus: Sandra Bullock & Melissa McCarthy, the Hemsworths, Rihanna, Justin Theroux and more
More from PEOPLE
- Amy Poehler Receives Hasty Pudding Award from Harvard
- Johnny Depp and Amber Heard Are Getting Married Next Weekend!
- Katherine Heigl Weighs In on Patrick Dempsey's Divorce
- American Sniper's Chris Kyle Was a 'Big Kid' as a Dad