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.