There's nothing quite like a dog in costume – and this year, celebrity pets did not disappoint!
Alyssa Milano dressed her little pups as yummy tacos
, while the pups of singer Aubrey O'Day morphed into
a bunny and a mermaid.
star Sarah Hyland's Maltipoo Barkley went rogue
dressing as a "little devil bat dog." And actress Chloë Grace Moretz doted on dog Jaxon who was a witchy villain.
"I'm a baby dog witch," Moretz wrote on Twitter
. "No big deal. He's just the cutest thing you've ever seen."
Perhaps the scariest of all was Paris Hilton's
dog, who transformed into a little monster that only a mother could love.
"Loving my puppy Harajuku’s @LadyGaga costume," Hilton Tweeted
with a photo of the dog wearing a blonde wig and wacky shades.