48 of the best celebrity Halloween costumes of all time

Heidi Klum is the queen of Halloween. Her elaborate looks for her annual costume party just keep getting better.

It's not clear exactly what Martha dressed as in 2009 (tree? wood nymph?), but you can tell she's better at papier-mâché than you'll ever be.

Bette Midler hosts a Halloween benefit gala every year, and her costumes never disappoint. In 2016, she recreated the costume of Winnie Sanderson, her character in "Hocus Pocus."

In 2016, Broadway actress Cynthia Erivo dressed as Neytiri, one of the main characters from the film "Avatar."

Actress-model Emily Ratajkowski seriously committed to this Marge Simpson costume in 2015.

And in 2016, Kelsey Grammer also chose a character from "The Simpsons": Sideshow Bob.

Singer Mariah Carey is another famous Halloween party hostess. She tends to stick to traditional sexy costumes.

Actor Kyle McLachlan sported some gruesome golf makeup in 2007.

Perez Hilton made a pretty convincing Miley Cyrus in 2013.

On Halloween 2011, singer Fergie looked like she stepped right off the set of "Toddlers and Tiaras."

In 2009, "Today" host Hoda Kotb dressed as Yoda from "Star Wars" — wispy hair and ears and all.

Back in 2011, model Amber Rose dressed up as Guns N' Roses guitarist Slash.

Katie Couric was almost unrecognizable as Dolly Parton in 2013.

Leave it to Sia to wear an Easter bunny costume on Halloween 2009.

On Halloween 2015, Model Gigi Hadid went for the classic bad Sandy from "Grease."

That's a giant Pixy Stick in Chrissy Teigen's hand...maybe she was the sugarplum fairy for Halloween 2011?

Kim Kardashian was Little Red Riding Hood in 2010. Her friend Jonathan Cheban was the Big Bag Wolf.

Ice T and Coco often opt for couple's costumes. Here they are in 2010 as Dr. F. Stein (get it?) and a nurse.

In 2015, Kelly Ripa and Michael Strahan poked fun at Katy Perry's Super Bowl performance, dressing as the singer and her infamous backup dancer, Left Shark.

In 2013, Dascha Polanco (of "Orange is the New Black") channeled the creepy ballerina from Black Swan.

In 2004, a young Anne Hathaway dressed as Cleopatra.

Singer Ashanti's 2014 and 2015 costumes (a belly dancer and a Smurf) show ultimate Halloween dedication.

Actor Jason Biggs was an adorable Dorothy in 2005.

Joe Jonas dressed as Derek Zoolander in 2014.

TV personality Bethenny Frankel looked glamorous as Marilyn Monroe in 2013.

Halloween spirit runs in the Jonas family: Here's Nick as the Hamburglar in 2015.

Technically they're wearing normal clothes, but Jennifer Lopez and then-boyfriend Casper Smart had stunning skeleton makeup in 2015.

Actress Michelle Trachtenberg broke out serious face-painting skills for Halloween 2011 and 2014.

Matt Lauer looked freakishly like Jerry Seinfeld in this costume for Halloween 2016.

The "Today" hosts are known for their wild Halloween ensembles. In 2008, Matt Lauer and Meredith Viera dressed as Humpty Dumpty and Pinocchio.

Iggy Azaela brought a dalmation to complete her Cruella de Vil costume in 2013.

Supermodel Cindy Crawford chose a punk ensemble for her 2016 costume.

Olympic swimmer Ryan Lochte was the Mad Hatter from Alice in Wonderland in 2016.

Kathy Griffin transformed herself into a popular Snapchat filter in 2016.

Demi Lovato created a spooky ghost/zombie look for a 2013 Halloween party.