Stars and Their Pets: Olivia Wilde's Curbside Cutie

The actress and pooch Paco look both ways before crossing a New York City street Tuesday.

The hides her baby bump behind Chihuahua Lola on Tuesday while bringing the on-the-mend mutt to a vet in Toluca Lake, Calif.

looks after loyal companion Sidi on Tuesday in Culver City, Calif., where he stopped by a pet hospital to check up on his dog.

The Jersey Shore star gets an early start on her trick-or-treating Tuesday with her pair of pups in New Jersey.

Walk this way! The actor and his black-and-white beauty fall in line while navigating New York on Monday.

leading lady ponders which way to go during an afternoon walk with shepherd mix Cora in Los Feliz, Calif., on Tuesday.

Rocking her signature casual-chic style to walk her pit bull Tina in L.A., the looks ready for a fall date with rumored on-again love .

The model mom keeps her hands full with Yorkie Frankie on Monday while running errands in N.Y.C.

Well hello, good-looking! pals around with an adorable pooch Monday while shooting scenes for 30 Rock in New York.

The 90210 hunk covers up with his pup before hitting the L.A. set Monday.

Wait for me! Lynch’s little lady Olivia races to keep up with the Glee funny lady and wife Dr. Lara Embry in L.A. on Monday.

The Dark Knight Rises tops off her Sunday afternoon with a trip to a Studio City, Calif., dog park with chocolate Lab Esmeralda.

Looks like Hugo approves! gives girlfriend ‘s mutt a sweet snuggle Sunday while running errands with the actress in Hollywood.

Whee! The Real Steel races to catch up with French bulldog Dali on Monday while bringing daughter Ava to school in New York.

Run, , run! Seyfried pounds the L.A. pavement Friday with Australian shepherd Finn by her side.

The Oscar winner brings two for the road Sunday while taking a midday stroll in New York.

The Office hits the Hollywood Hills for a hike with his furry buddy Saturday.

O’Day carries her dip-dyed doggie duo – Maryann and Ginger – while exiting her N.Y.C. hotel Friday.