Hilary's Special Delivery

Hilary Duff stays focused while retrieving her cat from the Sherman Oaks Veterinary Hospital in Los Angeles on Tuesday. The singer-actress is a real animal lover: She and boyfriend Mike Comrie recently adopted a dog together, too.

It’s Dad’s day out! New England Patriots quarterback Tom Brady chauffeurs Yorkie pup Vida on Wednesday while out for a bike ride in Boston with son John Edward, 21 months.

Actress Minnie Driver and her playful pooch romp on the beach in Malibu on Saturday. We’re loving that dog’s energy!

Matthew Broderick’s pup is all ears as the actor goes for a stroll around his family’s New York City neighborhood Tuesday.

Carrie Underwood and pup Ace are feeling blue (check out his matching leash!) as they arrive Saturday for a flight at Los Angeles International Airport.

Actor Robert Downey Jr. and wife Susan enjoy a sunny Sunday on the beach in Malibu with their feisty pooch.

Channing Tatum and fiancée Jenna Dewan look both ways as they prepare to walk their dogs at L.A.’s Runyon Canyon Park on Saturday.

Who’s a good boy? Funnyman Tom Green pets a pup after reportedly leaving a late lunch Friday at L.A.’s Barney’s Beanery.

David Hasselhoff cradles his tiny pooch after lunching with his daughters at Joan’s on Third in Los Angeles on Saturday.

See more stars and their pets!