Choosing a Halloween costume is one of our fave yearly traditions, and it鈥檚 pretty darn clear that celebrities love to dress up as much as we do. And while we obviously like to believe that our celeb idols are pretty aware of what鈥檚 right and wrong, some seem totally tone-deaf when they step out on October 31 in offensive (and wildly cringe-worthy) costumes. From the mildly irksome to the WTF-were-you-thinking, here are some of the most controversial celebrity Halloween costumes we鈥檝e seen.

Hilary Duff and boyfriend _ Native Halloween costume

1. Hilary Duff and her bae, Jason Walsh, pulled a mix of cultural appropriation and offensive timing by dressing up as a pilgrim and 鈥淚ndian chief.鈥 Not only totally wrong because cultures are NOT costumes, the current #NoDAPL protests in #StandingRock makes these costumes seem even more tone-deaf.

2. Julianne Hough: Julianne鈥檚 costume as Crazy Eyes from OITNB back in 2013 was a classic example of a WTF costume. It鈥檚 hard to imagine that anyone can think it鈥檚 okay to use blackface these days, but Julianne decided to go for it and, oh boy, did she ever feel the (totally justifiable) backlash.

3. Heidi Klum: Heidi is known for going all-out with her costumes, but she made a major misstep when she showed up to her ninth annual Halloween party done up as the Hindu goddess Kali. Plenty of folks were not impressed, to say the least.

4. Ashley Benson: Pretty Little Liars star Ashley Benson may have thought she was showing the love to Cecil the Lion when she dressed up as him for Halloween last year, but folks were feeling the hate. If you remember, the well-known lion was killed by a hunter, which stirred a major uproar across the world. Ashely may have thought her costume was a tribute, but with comments like, 鈥淗ow could you? Everybody was so sad and mad when that stupid guy shot Cecil! U apparently couldn鈥檛 care less,鈥 Ashley was quick to delete her original pic and reupload it without the Cecil reference, though, of course, people weren鈥檛 as fast to forget.

5. Lily Allen: While some saw it as a sign of solidarity with Kesha, others thought it was totally distasteful for Lily Allen to dress up as Dr. Luke in 2014. Ya know, the man who鈥檚 been accused of everything from sexual assault to forcing Kesha to starve herself and basically bringing her career to an almost complete halt? Yeah, him.

STORM

A post shared by Khlo茅 (@khloekardashian) on

6. Khlo茅 Kardashian: Though not everyone was ready to throw shade and some even liked Khlo茅 Kardashian鈥檚 Storm costume this year, others were hating it HARD. From those who just thought it was a crappy version of a beloved X-Men mutant to those who called out the light-skinned star for dressing up as a dark-skinned character, it was a big ol鈥 mess.

7. Prince Harry: Back in 2005, Prince Harry wore what is no doubt the most offensive costume we鈥檝e ever seen on a royal鈥 or pretty much anyone, for that matter. Dressing up as a Nazi, there鈥檚 so much you can say about how wrong this is, but basically鈥 NO! NO! NO!

What do you think the most offensive celebrity costumes EVER were? Tweet us @BritandCo!

(h/t Daily Beast; photos via Michael Kovac/Getty)