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Best and Worst Celebrity Halloween Costumes 2013: Miley Cyrus, Kate Upton and More

See the best (Beyoncé as an Instagram) and worst (Matt Lauer as a 'Baywatch' babe) celeb Halloween costumes of 2013.

Best and Worst Celebrity Halloween Costumes 2013: Miley Cyrus, Kate Upton, and More

Happy Halloween! See which celebrities best captured the Halloween spirit, from the bizarre ('TODAY' host Matt Lauer as Pamela Anderson in 'Baywatch') to the NSFW (Miley Cyrus in a revealing Lil' Kim costume, replete with nipple pastie).

via Twitter

Miley Cyrus

Ever the provocateur, pop princess Miley Cyrus poked fun at her own MTV VMAs controversy by dressing as rapper Lil' Kim from the '99 VMAs-- revealing boob pastie included.

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Kate Upton

The buxom blond model attended a Halloween party in Beverly Hills on Oct. 25 dressed as... a fancy skeleton? Your guess is as good as ours.

Slaven Vlasic/Getty

Matt Lauer

This is seriously spooky: 'TODAY' co-host Matt Lauer dressed as Pamela Anderson's busty 'Baywatch' character, C. J. Parker, during a taping of the show on Oct. 31.

Instagram

Chelsea Handler

Ever the cheeky prankster, E! late night talk show host Chelsea Handler dressed up as a cheery pregnant woman for Halloween earlier this week.

Beyoncé

Are you ready for this jelly? She's got over seven million followers on Instagram, so pop diva Beyoncé decided to dress as, you guessed it, an Instagram of herself.

Instagram

Fergie & Josh Duhamel

The husband and wife duo of Fergie (of The Black Eyed Peas) and Josh Duhamel really got into the Halloween spirit this year, dressing as a cleavage-heavy Elvira and the ghoulish Riff Raff.

Jerod Harris/Getty

Larry David & Pal

Even Larry David, the famously grouchy 'Curb Your Enthusiasm' and 'Seinfeld' creator, got into the Halloween spirit this year. Here he is dressed as a two-headed man (along with an unidentified pal) attending the Casamigos Halloween Party at the home of Mike Meldman on Oct. 25 in Beverly Hills.

Rob Kim/Getty

Kelly Ripa & Michael Strahan

Not to be one-upped by Matt Lauer and the 'TODAY' team, 'LIVE with Kelly and Michael' co-hosts Kelly Ripa and Michael Strahan dressed as Miley Cyrus and Robin Thicke from the MTV VMAs. A pretty unimaginative choice, but they sold it pretty well.

Instagram

Chris Colfer

The 'Glee' star Instagrammed this photo of himself dressed as everyone's favorite bleep-bleepin' robot: R2D2, from 'Star Wars.' Although we don't remember metallic little fella ever dressing like this in the movies...

Instagram

Paris Hilton

Paris Hilton dressed as Miley Cyrus at the VMAs. Again, not very imaginative... but some points for vividly recreating the costume.

Instagram

Neil Patrick Harris & Family

Every year, the Harris clan dresses in amazingly cute getups. They are, without question, the first family of Halloween.

Twitter

Sir Patrick Stewart

The 'Star Trek' and 'X-Men' actor has become one of the funniest voices of Twitter. On Halloween, he tweeted this photo of himself dressed as a lobster in his Brooklyn bathtub.

London Entertainment /Splash

Sandra Bullock

Now that she's back from space, the 'Gravity' star took her son, Louis, trick-or-treating in matching skeleton costumes. Cute.