Mischa Barton keeps it casual in a grey sweatshirt as she runs errands with her pup in Los Feliz

Kristen Bell rocks a matching blue sweatsuit while enjoying a sandwich at Griffith Park in Los Feliz

Stella Maxwell cradles her beloved dog in her arms while heading to lunch in Los Feliz

Demi Moore hands puppy potty pads and slippers to friend in Los Feliz