“You should see me in a crown…” but for Halloween, I’m going full send with these Billie Eilish Halloween Costume Ideas and her iconic looks of baggy clothes, crazy hair colors, and all the attitude.

This post is a list of Billie Eilish Halloween Costume Ideas, part of our pop diva costume series, to rock this year and beyond! If you go as Billie, you will have plenty of outfit inspiration as this icon!
CHECK OUT OUR ENTIRE POP DIVA SERIES!

THE LEGENDS
- Katy Perry Halloween Costume Ideas
- Ariana Grande Halloween Costume Ideas (coming soon!)
- Lady Gaga Halloween Costume Ideas (coming soon!)
- Beyonce Halloween Costume Ideas
THE NEXT GENERATION
- Sabrina Carpenter Halloween Costume Ideas
- Doja Cat Halloween Costume Ideas (coming soon!)
- Chappell Roan Halloween Costume Ideas
When October 31st rolls around, all of these will give plenty of ideas for amazing individual Halloween costumes. These would also be great as a group costume idea for Halloween. We also love seeing theme parties, so throw a diva party where everyone has to come dressed as their favorite diva! Send us pictures!!!
Billie Eilish Aesthetic
If you’ve ever watched a music video and thought, “Dang, Billie Eilish is a whole vibe,” you’re not alone.
Halloween is the perfect time to channel that edgy, moody energy she’s famous for. She’s basically carved out her own corner in music history, and the best part? Most of her looks are super comfy. Like, hello? Baggy clothes as a costume? Yes please.
A Billie Eilish costume lets you look cool and feel like you’re still in loungewear. Win-win.
What Day Of The Week Is Halloween On This Year?

Slowestuff Halloween Section

We LOVE Halloween, so we definitely have a whole section of the blog dedicated to it!
This post focuses on Billie Eilish costume ideas, but we have lots of costume inspiration for other divas like Sabrina Carpenter costumes, plus a lot more beyond the divas featured in this series.
We have all kinds of costume inspo for people with glasses (men & women), Father & Son or Mother & Son costume ideas, costumes for pets, and babies – really something for everyone who wants to get dressed up and have fun on Halloween.
It’s not just costumes though! We also love all the decorations we see in homes and yards, some amazing outdoor Halloween porch decor, and plenty more.
Halloween extends into our scrapbooking section, with several posts featuring our favorite Halloween layouts. And is there a better reading season than spooky season?? We have plenty of horror book recs and our favorite enchanting witchy books that are perfect to get you in the spirit.
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Billie Eilish Essentials
One thing about Billie’s looks, is that you may have a lot of outfit pieces that will work to help create the look. So shop in your own closet – or your boyfriends! A few key pieces will pull it together and you will totally have the look.
You can go full Bad Guy with that neon green wig and oversized attitude, or lean into one of her glam-but-still-goth spooky season red carpet moments. Billie is always on the list of most popular pop culture Halloween costumes for a reason. And with her new album heating up playlists again (Hit Me Hard & Soft at the time this post is being made), you’re in the right place if you wanna show out for your Halloween festivities or even a pop diva theme party, any time of the year.
Here are some of the essentials for a Billie costume:
The Hair
Signature Eyes
The other feature Billie Eilish is known for, and one that never changes, are her incredible blue eyes. We can’t help with the sanpaku look, but we can help you find blue contacts, in case you don’t have that gorgeous blue color naturally.
Check out this amazing website Moco Queen for all kinds of cosplay contact lenses, including this one called “Ash Blue” that remind us a lot of Billie’s blue hue.
The Nailssss
More often than not, she is rocking some seriously long nails
Signature Jewelry
Well, it may not be signature, but she wears this in a lot of her looks, so we are going to include it here so we don’t have to repeat it throughout the post.
From bold red carpet fits to the chill streetwear she rocks with a face mask (because Billie makes everything a lewk), there’s a ton of inspo.
Maybe go for a loose Lost Cause vibe, throw on a colorful wig, or recreate her debut album era hair with spray dye and attitude.
Grab a pair of chunky sneaks, pile on the silver rings, and don’t forget the long press-on nails.
Maybe go thrifting for a yellow sweatsuit, or style some cargo pants you already own, and then roll up with your group of friends all decked out in Billiefits.
How fun would it be for a whole group of friends to have a theme of different Billie Eilish looks!?! That is sure to be one of the best Billie Eilish Halloween costume ideas to win you Best Costume award at your next Halloween party.
Ocean Eyes & Oversize Vibes: Billie Eilish Halloween Costume Ideas
We are going to split these looks up based on her hair color to make them easy to sort!
Black Hair Looks
The baseline. Her black hair looks are what we think of when we think of Billie Eilish’s natural color. Is it? We have no idea. But it looks so good on her, it may as well be.
Re-Create The Look
Oversized Chic
Re-Create The Look
Green Jersey Concert Fit
One of our all time favs!
Re-Create The Look
Red Jersey
Bloody Knees
Why she started wearing knee pads for her shows!
Red Hair Barbie Fit
Red & Black Hair
Halloween – how apropos
Polka Dot Chic
Re-Create The Look
Blonde
Billie has actually had blonde hair a few times! There are a few different types of looks you can go with if you are a blonde, or grab you a blonde wig to channel the vision.
Blonde Vogue
The departure from the oversized fits definitely sticks out in our minds!
Barbie Movie
Short and Sassy Blonde
Green Hair
Was anyone else surprised, like we were, when she announced this was a wig?
Re-Create The Look
Green Space Buns
Arguably, the most iconic Billie look.
Green Upon Green
Blue Hair
These take us back to when we first heard her music.
Re-Create The Look
Billie Headband
Re-Create The Look
Sharpie Tattoos
Re-Create The Look
Ocean Eyes & Oversize Vibes: Billie Eilish Halloween Costume Ideas
We hope this post helped you find lots of great Billie Eilish Halloween costume ideas during this time of year, or any theme parties all year long!
Looking for more Halloween? We have a whole section dedicated to it! Check it out for sexy halloween costumes for her, costumes for kids, and even costumes for your pets! Don’t forget about our pop diva series too!
Stay up to date on all seasonal things and subscribe to the Slowestuff newsletter for year-round content!
Happy Halloween!!!
Slowestuff
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