13+ Of The Most Controversial Celebrity Halloween Costumes

Duff and her ex Jason Walsh were embroiled in a major controversy in 2016 when they attended the Casamigos Halloween Party dressed like this.

Hilary ended up apologizing on Twitter, writing: "I am SO sorry to people I offended with my costume.It was not properly thought through and I am truly, from the bottom of my [heart]. sorry."

It's been about seven years and Hough is still trying to live down that time she dressed in blackface to become "Crazy Eyes" from Orange is the New Black.

She ended up apologizing profusely for the whole thing, saying that she learned a "big lesson" and that she's "so sad" that she was "that dumb."

The supermodel is known for absolutely crushing it at Halloween, but when she went as the Hindu goddess Kali in 2008, some say that she missed the mark.

In fact, some Hindu leaders were so offended by her costume choice that they demanded that she apologize. She never did.

If Lily Allen had decided to go as a regular doctor for Kate Hudson's 2014 Halloween party, then that would have been fine.

Unfortunately, the singer took things to far by going as Dr. Luke, the music producer who had just been accused of sexual assault from Kesha around that time.

The Pretty Little Liars actress caused major outrage when she dressed up as Cecil the Lion who, at the time in 2015, had recently been murdered by an American dentist.

She ended up apologizing on social media the very next day, as well as telling fans that she hadn't even written the offensive caption herself.

Two wrongs don't make a right. The pro snowboarder went as the character with special needs who Ben Stiller portrayed in Tropic Thunder.

A spokesperson for the Special Olympics criticized the Olympic athlete for the poor costume choice, resulting in Shaun apologizing.

There's just so much wrong about this image of Chris Brown dressed as a "terrorist."

People were offended everywhere, including on Twitter, where one person called him the "least self-aware celebrity on earth."

The crassness of producer Jemima Khan's costume was off-putting for some people on Instagram.

One wrote: "You ought to be ashamed of yourself. Creative and yet tasteless. Why materialize something so traumatic!!!"

Fans were really split over the actress's decision to go as a Geisha for her 2013 Halloween party.

They either thought that she picked an amazing costume or that she had totally crossed the line into cultural appropriation.

For example, one person wrote: "My race and the races of others are not a costume for a cheesy holiday."

While it's never okay to imitate Native American culture, celebs keep missing the memo on that.

Singer Ellie Goulding found herself in hot water when she went as a Native American "Chief" for Halloween in 2014.

Commenters on the now-deleted post were furious, calling her a "racist" and "insensitive."

The reality TV mogul was accused of being offensive by dressing up as the singer Aaliyah for two main reasons.

For one, people pointed out that the singer was a black woman and Kardashian is not.

And two, people took offense to Kim dressing up as the iconic singer who tragically died in a plane crash at the young age of 22.

"THERE'S A DIFFERENCE BETWEEN REPRESENTING AND APPROPRIATING A CULTURE," one person wrote on Tisdale's image from 2016.

What people — like Ashley — forget to remember is that Day of the Dead is actually a Mexican tradition that honors people's dead relatives.

So yeah, YIKES.

"You are a Racist Pig," someone wrote on this image that the _Real Housewives_star posted on Instagram.

While many accused of her using blackface, Luann eventually set the record straight. "I had bronzer on that I wear normally like the rest of my skin. I’m tan, like right now."

Both Khloé Kardashian and Scott Disick came under fire in 2014 for their controversial Halloween choices.

While Khloé's costume wasn't offensive (she was a cat), people did take offense to the picture she took with Scott and his friend dressed as "Shieks."

Additionally, her caption, which read "Shiek pussy," caused an uproar on social media.

With her "sexy Indian" costume, ChrissyTeigen became another celeb who crossed the line.

It didn't help that husband John Legend dressed as a cowboy, making it an "Indian and cowboys" theme.

People took much offense to Jenner dressing up as an Eskimo (which, BTW, is actually considered a slur for Inuit and Alaska Natives) that she ended up changing the name of her costume to "Snow Princess."

When the Clash of the Titans star dressed as the Sex Pistols' bassist, that was all fine and dandy.

However, Hamlin took things way too far by wearing a t-shirt that had a swastika on it. Naturally, people were pissed.

The country singer found himself in hot water for wearing blackface. He had on dark makeup, dreadlocks, chains, and more.

A year after going as the rapper, the singer apologized and said he painted his face to "go unrecognized in public."

This isn't the first crazy thing the Jersey Shore singer has done, and it's certainly not the last.

Making light of a missing child is never well-received!

People were outraged when the talk show host wore this dead Steve Irwin costume, complete with a bloody stingray barb, to a bunch of Halloween parties.

One fan wrote: “I suppose he thought it was funny, but it was seriously lacking taste, decorum and respect for Steve‘s family.”

Just as blackface is never okay, so is whiteface.

Sadly, the basketball star missed the memo on that when he dressed as Timberlake in 2010.