When professional comedians, A-list stars, world-class make up artists and costume people combine, you get some truly amazing celebrity Halloween costumes — for better or worse. As Halloween weekend commences, so begins the parade of outrageous, sexy, spooky, hilarious and offensive costumes across the red carpet and onto social media to delight us, fright us, and of course, stir up controversy.

Hilary Duff, who has dodged scandal for so long, finally put her foot in it by stepping out for Halloween dressed as a pilgrim, alongside boyfriend Jason Welsh dressed as a Native American chief — complete with feathered headdress and face paint. Needless to say, the Younger star will be publicly shamed and openly despised by the good-hearted people of Twitter until, sadly but inevitably, an even more offensive costume surfaces. (We're looking at you, Julianne Hough!)

On the bright side, Duff's inadvertent offense is shining a light on the Dakota Pipeline controversy, and the struggle of Native Americans and their allies to preserve reservation lands from a planned $3.7 billion oil pipeline.

Here are some of the other most talked-about celebrity costumes so far:

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Sexy AF

A photo posted by @amyschumer on

Yes, that's Amy Schumer in a curly-head wig, clutching a bike and ready to ride off into the night as Dustin a.k.a "Toothless" from Stranger Things, alongside her boyfriend Ben Hanisch as an extremely intense Eleven.

Katy Perry
donned a creepily realistic facial prosthetic and signature minimalist pantsuit to become Hillary Clinton for a night. And, believe it or not, under that gray toupee and — wow, yeah, uncomfortably detailed facial prosthetic — is Katy's boyfriend Orlando Bloom acting as Bill. If they're campaigning for facial prosthetics to be made illegal, they've won in a landslide!

The Vampire Diaries'
Nina Dobrev gets a standing ovation for this gutsy and goofy costume: the horse that sheltered Leonardo DiCaprio in The Revenant, complete with a grizzled Leo.

Winifred Sanderson flies in to Hulaween! Says thanks to everyone who made it such an electrifying evening!!

A photo posted by Bette Midler (@bettemidler) on

Bette Midler
made nostalgia addicts swoon across social media when she transformed into her Hocus Pocus character Winifred Sanderson to host her annual Halloween party at the Waldorf Astoria.

Scott Eastwood
is a dead ringer for dad Clint Eastwood, dressed up as the iconic Man with No Name at a Hilarity for Charity event hosted by Seth Rogen.

#ABFAB w my boo @kellysawyer #patsyandedina #bff 🍾🍾👯 #Halloween

A video posted by Jessica Alba (@jessicaalba) on

Jessica Alba
came to Kate Hudson's party dressed like our favorite troublemaking fashionista: Edwina from cult British comedy Absolutely Fabulous. Alba must truly be a fan, because she got all the accessories right, including the most important one: a gorgeous and glamorous Patsy.

A photo posted by Kylie (@kyliejenner) on

Kylie Jenner
looks smoking hot and DIRRTY as 2002-era Christina Aguilera — or, as we knew her then, "Xtina" Aguilera — completely with bleached hair extensions, chaps and sooo many face studs.

Last night me and my beautiful Alice in Wonderland🎩👸🎃#casamigos #halloween

A photo posted by Ryanlochte (@ryanlochte) on

Who knew Ryan Lochte was so into Tim Burton? The Olympian and Dancing with the Stars contestant incorporated a breathtaking amount of detail into becoming Johnny Depp's Mad Hatter at a Casamigos Tequila event.

Holiday times 😘

A photo posted by Mariah Carey (@mariahcarey) on

Clearly there were two camps in the Cannon-Carey family for how to dress this year: the girls went glamorous (Mariah Carey is one sexy devil, and daughter Monroe is a fairytale Rapunzel) and the boys went gamer (Nick Cannon and Moroccan (a.k.a "Roc") make an adorable Mario and Luigi.)


A photo posted by Kourtney Kardashian (@kourtneykardash) on

Kourtney Kardashian captioned this simply "evil," so we are left to our own speculation on what this costume is: an original take on the manifestations of sinister Jungian forces too primal to be denied? Or a whole new lifestyle that will extend far outside Halloween, dedicated to hatching diabolical mischief? Hopefully the latter.

The hosts of Good Morning America always go all-out with their Halloween costumes, and this year was no exception. Lara Spencer did an excruciatingly dorky take on Alexander Hamilton that seemed to disturb Lin-Manuel Miranda, but her beard was on point.

Michael Strahan hosted the $100,000 Fear-Amid as a very weird Pikachu.

GMA guests and Dancing with the Stars pros Maksim Chmerkovskiy and Peta Murgatroyd embraced their coupledom by dressing up in 2016's top costumes, Harley Quinn and the Joker from Suicide Squad.

Nailed it, then I bailed!! I-CON-IC 🍸@iambranden

A video posted by Jimmy Neutch (@teyanataylor) on

Model/singer Teyana Taylor dressed up as internet sensation Joanne the Scammer for a very iconic look.

That would u live for me love... cause that die for me shit too easy ❤️ #TheShumperts

A photo posted by Jimmy Neutch (@teyanataylor) on

The next day, she was at it again, dressing up in a couple's costume with her husband, Cleveland Cavaliers shooting guard Iman Shumpert, as who else but Harley Quinn and the Joker.

Model Heidi Klum is a Halloween champion, one of the greatest to ever do it. Her costume this year didn't outdo her extraordinary Jessica Rabbit costume from last year, but it was in service of something greater: she teamed up with Ellen DeGeneres to recreate Sia's "Chandelier" video for Monday's Ellen, with Ellen as Sia and Klum as tiny dancer Maddie Ziegler.

📽🎞Hooray for Halloween!🎞📽#Marilyn #Groucho #Chaplin #JamesDean @dbelicious

A photo posted by Neil Patrick Harris (@nph) on

Neil Patrick Harris and his family are also reliably great at Halloween, and this year is no exception, as Harris, husband David Burtka and twins Gideon and Harper dressed as Old Hollywood icons: Marilyn Monroe, Groucho Marx, Charlie Chaplin and James Dean.

A video posted by Beyoncé (@beyonce) on

Beyoncé had the best group costume of all. Bey, daughter Blue Ivy and mom Tina Lawson dressed up as '90s R&B group Salt-N-Pepa — Lawson is DJ Spinderella. Her husband Jay Z dressed as Dwayne Wayne from '80s sitcom A Different World.

Nortiness ensues

A photo posted by Sophie Turner (@sophiet) on

Game of Thrones sisters/real-life besties Sophie Turner and Maisie Williams dressed up as Bad Girl Scouts — Brownies with weed leaf badges (I wonder what kind of brownies they're talking about...). Turner captioned the photo she shared "Nortiness ensues," which I think has a double meaning — It's "naughtiness" with a thick British accent, but it's also a reference to their characters' Northern heritage.

Tom Hanks was David S. Pumpkins. If you have questions, please direct them here.

Any thoughts on these hot looks?