Garner and her dapper baby boy keep it carefree in Brentwood, Calif. Plus: Jennifer Aniston, Kourtney & Penelope, Josh Duhamel and more

KIDDING AROUND

Kourtney Kardashian stays close to 3-year-old son Mason and 1-year-old daughter Penelope – who sports a festive headband – after leaving a party Sunday in Los Feliz, Calif.