Debra Messing

Maybe I'll just start making INTENTIONALLY woefully wrong guesses. Like, "Oh, look, Debra Messing is dressed as Richard Simmons!" Except if I keep that up you know that somebody won't realize that's what I'm doing and the comments will get ugly. So, instead, I will just wonder how heavy that wig was and accordingly how much Tylenol she needed the next day.

Chloe Moretz

I love how elaborately spooky this is. I applaud a lady with a lack of vanity on Halloween.

Kimye Kandashian

"LISTEN, I'LL DO THIS, AS LONG AS NOBODY CAN SEE MY FACE. BECAUSE KANYE WEST DOESN'T NEED A COSTUME. HE IS THE COSTUME. AND THE WORLD RUNS ON HIS FUMES AND EATS THEM UP LIKE LEGUMES AND LIVES TO CONSUME THE CREATIVITY FROM HIS MAN-WOMB. HALLOWEEN IS TOO JEJEUNE FOR A MAN WITH MY PLUMES."

Kim, Kourtney, Scott Disick, and Jonathan Cheban

I cherish that Kanye wouldn't even participate in this photo op. I also enjoy that Scott Disick went as that sad little follower Robin. Personally I think they should've made that Cheban dude be Robin and had Disick go as the Riddler, since they both carry canes. Maybe all that is too on-the-nose.

Paris Hilton

Another Robin. It must be embarrassing when you and Paris Hilton accidentally dress up as the same thing, even if it's not at the same event. But at least this time Paris IS dressed up as a recognizable thing. That feels like such an important step forward.

Dita Von Teese

In thumbnail I seriously thought this was Evan Rachel Wood, dressed up as... I don't even know, maybe she was a fancy old-school groom and her new hubby Jamie Bell would show up as a bride. But no. It's Dita Von Teese, dressed as... Dita Von Teese in a suit. The resemblance is so uncanny, though.

Jenny McCarthy

If this event was at the Pussycat Dolls saloon, doesn't that mean she's basically... dressed like the Pussycat Dolls are every night, except with fancy sunglasses? Oh, Jenny. Also, that negligee is about four cup sizes too small. I hope she brought someone in her entourage who was in costume as a certified boob-wrangler.

Deborah Harry

Let me guess: Dorothy Gale from The Wizard of Oz. AM I RIGHT?!?!?!?!

Bette Midler

The caption for this claims it's Bette Midler dressed as the ghost of Coco Chanel. Presumably she came back to haunt and torture Karl Lagerfeld for some of the crimes against ladykind his dresses have committed.

Katy Perry

Katy is dressed as Jane Lane from Daria. I suspect carrying a prop around all night turned out to be crazy annoying. I don't remember Jane Lane having a stuffed animal all the time, though... commenters? Help out a lady.

Aziz Ansari

I love that he is wearing a toddler's costume from Thomas the Tank Engine. I also appreciate that, of the other engines, he randomly went as James and not Percy. Because if you've ever been sufficiently disturbed by an enunciation-challenged toddler running around the house screaming for Percy or wanting to know where to find Percy or announcing that his favorite thing is Percy, well, then you know why I might assume Aziz Ansari would pick that one.

Rose McGowan

I've decided this costume is, "Alexis Carrington If She Were An Ice-Skating Witch From Narnia." Do not try and tell me otherwise.

Harrison Ford & Calista Flockart

These two crazy kids seem happy.

Jessica Simpson and family

I hope Eric Whatever grows his hair like that for their inevitable reality series. Since Jennie Garth appears to have abandoned the country, maybe Jessica can take over her franchise. Jessica Simpson: A LOT Bit Country. Yes. Also, Maxwell in her little hen suit is adorable.

Kevin Hart

Frankly I'm shocked a lady in Hollywood hasn't worn this for real.

R.Pattz and K.Stew

The clear masks are so effective. It's like Eyes Wide Shut, combined with those face splints basketball players have to wear if they want to suit up with broken noses.

Avril Lavigne

Avril's sexy sailor costume had me double-checking for a second whether it was Shannen Doherty. That's probably not great for either of them.

Kate Moss and Jamie Hince

Best photobomb ever. (They are Morticia and Gomez Addams, by the way.)

Gwen Stefani

So Gwen went to Jonathan Ross's party in the UK dressed as... Gwen Stefani but with some mild costume blood issues?

Helena Bonham Carter

I adore that HBC basically went as herself. But with a giant demented bunny.

Chris Brown

Okay. So the caption for this photo set claimed Chris Brown was dressed as... a member of the Taliban. If that was in fact his goal, then... I am speechless. Well, not really: THAT IS SO TONE DEAF WHAT IS WRONG WITH YOU I DO NOT EVEN THINK YOU DESERVE PUNCTUATION MORON. There are SO MANY reasons this is terrible, I can't even list them all. Why are some people so willing to deny that, by all appearances, he is a repulsive idiot? Why is Rihanna even GOING there? WHY WHY WHY. I am so grossed out by his moronic grossitude.

Sandra Bullock and child

This is basically the only way I can cleanse my brain. How CUTE is he? MUFFIN.

Fugloween 2012

Here are two things I've learned from doing postings this Halloween: 1) I am pretty sure Chris Brown's costume is going to make your head explode, and b) I'd best not even try to ID most of these costume for fear of angering Fug Nation when I get it wrong. Some folks are REALLY disgusted that I happen not to have seen Moonlight Kingdom. It's like I personally knifed them, just because I can't watch or get to the movies as much as I'd like. Please forgive, Fug Nation. I hate it when we fight. At LEAST wait until I can acquire and don some leggings as pants, so that your disappointment can be complete. [Photos: WENN, Fame/Flynet, Pacific Coast News, Bauer-Griffin, INF]