To celebrate Halloween, we've compiled some of the best pictures of dogs wearing costumes. ENJOY.

A few weeks ago, the good people at Dogster gave us "Dogs that Look Like 'Mad Men' Characters, which had Alison Brie as AS A CHIHUAHUA.

When Matt sent me an e-mail last month confirming whether or not I was in Austin, Texas, and asking me if I'd go to a local corgi gathering and cover it for him, I jumped at the opportunity.

I feel like every time I fill in, I post some sort of "Community" mash-up or song thingy.

The Osirian Portal goes viral.

As semi-accurately revealed in yesterday's What's on Tonight, last night's episode of "How I Met Your Mother" featured cats in bridesmaid dresses during a dream-sequence wedding near the end of the show.

On the heels of the Windows 7 commercial that used a kitten in marshmallows and a bunny wearing a hat come two more TV spots of note that use adorable animals dressed in clothes (see below).

And this, people, is why Conan O'Brien is my favorite: in a segment called "A Tonight Show Mini-Dose of Joy," show staffers brought out a little pen filled with puppies dressed as cats.

These dogs approve.