Charlie Turns One!

Until I have a dog of my own, I just love enjoying the company of my friend's mutts. Here's Julie and Ryan's boy Charlie celebrating his first birthday in style.

Natalie Portman

The newly single Natalie Portman (she recently split with musician Devendra Banhart) prepares to take off from LAX with her best buddy, puppy Charlie.

Aubrey O'Day

Aubrey O'Day attended the Declare Yourself party last night with her puppy, Ginger, who looks like she wants to die. Impossibly, this is the classiest I've seen Aubrey look perhaps ever.

Leighton Meester

Leighton Meester walks her pooch on the set of Gossip Girl. Love her ensemble!

Blake Lively

Blake Lively shows up to the set of Gossip Girl with her tiny pooch in hand.

Nick Jonas

Nick Jonas gives the paparazzi the thumbs up as he spend his 16th birthday walking his new pup near his Toluca Lake home.

Michelle Williams & Matilda Ledger

Michelle Williams and Matilda Ledger take a pooch for a walk. I feel like Michelle is always dressed like she came off the prairie or like she's in a modern dance troop. This case is the latter.

Kirsten Dunst

Kirsten Dunst got cleaned up in time to spend some time walking her dog and eating out in West Hollywood yesterday. You can see her dog is as thrilled as we are in that second photo.

LC and Lo

Lauren Conrad and Lo Bosworth spent Labor Day treating their pooch Chloe to a hike near their home.

Blake Lively

Blake Lively spent her 21st birthday on the set of Gossip Girl. But she was in good company - her poodle came along for the workday.

Ali Larter

Ali Larter looks pretty close to perfection as she plays on the beach in Malibu with her two dogs on Sunday.

Lauren Conrad

Lauren Conrad dropped off Chloe, who has gotten so big!, to Petco for grooming on Friday. I heart her entire ensemble, right down to the dog!

Rebecca Gayheart and Eric Dane

My heroes! Eric Dane and his wife Rebecca Gayheart saw a little pooch on the mend from a surgery at an adoption event while shopping yesterday. Looks like he pulled at their heartstrings because they adopted him on the spot. Love them!

Miley Cyrus

Miley Cyrus spent the weekend hanging out in her hometown of Toluca Lake, California. On Saturday, she took her dog shopping for her 1st birthday. On Sunday, she rode bikes with her mom, sister Noah, and brother Braison to lunch at Paty's.

Rachel Bilson

Rachel Bilson and her little sister Hattie took her dog Thurman Murman for a walk before meeting up with their grandma in Studio City yesterday. Rachel seems to be one of the most attentive and responsible celebrity pet owners. Nice job!

Rihanna and Chris Brown

Rihanna has quite a gentleman on her hands. Not only did her boyfriend Chris Brown carry her toy poodle, he also carried her shopping bags as the two did some damage to their credit cards on Melrose yesterday.

Leighton Meester

Leighton Meester returned home to New York after her trip to Los Angeles for the Teen Choice Awards with her pooch in tow. She looked a little sleepy and not thrilled to be greeted by the photogs.

Rachel Bilson

Rachel Bilson looks a bit grungy as she walks her dog Thurman Murman in Los Angeles over the weekend.

Paris Hilton

Paris Hilton took her puppy Marilyn Monroe shopping at Diavolina on Robertson. Looks like she's got her arms full!

Seann William Scott

Seann William Scott and his girlfriend (BEARD!) Victoria's Secret model Deanna Miller took their Lab for a walk in Venice, California. He's taken a breather from acting, but will be back on the big screen soon in Coxblocker.

Lily Allen

Lily Allen, sporting a chic new 'do and dress, guides her frightened pup across the street while shopping in London.

Lauren Conrad

Lauren Conrad attended the 2008 Paws for Style event last night. Gotta love a celeb with a cause and who practices what she preaches by adopting a mutt herself.

Leighton Meester

Leighton takes her pooch for a walk in New York over the weekend. She recently told Lucky that on the weekends you're far more likely to find her in flats and comfy clothes than the fine wardrobe of Blair Waldorf. Guess she wasn't kidding!

Jessica Simpson, Ashlee Simpson, & Pete Wentz

Jessica Simpson has fun with her pup Daisy while sunbathing in Lake Tahoe. Her sister Ashlee stayed low and out of the pap's sight for most of the day, while Pete kept his pale skin covered at all times.

Sandra Bullock & Jesse James

Sandra Bullock toted her special pup (who's missing a leg or two) to her 4th of July beach party.

Pete Wentz

Dad-to-be Pete Wentz takes his new puppy, Rigby, out on a coffee run over the weekend. What a cute little guy! (the dog, I mean.)

Jessica Biel

Jessica Biel looks a little sad as she goes out for a coffee with her pooch in Brentwood. Later Justin met up with her so hopefully that brighten her day a bit.