Malia and Sasha Obama party it up in Hollywood dressed in Western costumes at Billie Eilish’s Halloween bash

Malia and Sasha Obama showed off stylish costumes at Billie Eilish’s star-studded Halloween party on Saturday night.

The sisters stuck to a fashionable cowboy theme, with some standout features sure to turn heads as they party hopped in Hollywood.

Malia, 26, rocked thigh-high black boots that matched her black cowboy hat, a denim skirt and a white tank top. Her statement piece was a faux snake wrapped around her shoulders.

A temporary tattoo in the shape of barbed wire was placed around her upper arm and one of her hands appeared to be wrapped in white cloth.

The Harvard-graduated film director opted for a simple hairstyle as her reddish-hued hair flowed loosely as she walked. As she walked through the mud, it looked as if she had muddied her boots.

Malia Obama, 26, appeared to have muddied her boots as she walked through Hollywood as she kicked off the Halloween festivities

Malia Obama, 26, appeared to have muddied her boots as she walked through Hollywood as she kicked off the Halloween festivities

Sasha Obama, 23, was photographed with a clear drink and her phone as she left Billie Eilish's Halloween party

Sasha Obama, 23, was photographed with a clear drink and her phone as she left Billie Eilish’s Halloween party

Malia smiled as she sat in the back of a car on her way to The Birds Street Club in West Hollywood

Malia smiled as she sat in the back of a car on her way to The Birds Street Club in West Hollywood

Sasha, 23, looked fierce as she was photographed leaving Eilish’s party with a clear drink in her hand and her phone.

The younger Obama wore sloppy brown heeled boots and a long leather coat. She wore a baby blue cropped T-shirt, tan striped mini shorts and a thick black belt to tie the look together.

Underneath her coat it looked like she was wearing a brown cowboy style vest. Like her sister, Sasha looked like she wore her hair down.

A tan western-style bag with silver detailing hung over her forearm.

A beige bandage was seen on her knee.

The festive duo opted for simplistic makeup looks that matched the casual Halloween vibe of their outfits.

Former President Barack Obama’s daughters walked from party to party leaving the exclusive Bird Streets nightclub in West Hollywood.

Among the high-profile guests were Kaia Gerber, The Kid LAROI, Kiernan Shipka and Finneas with his girlfriend Claudia Sulewski, according to Just Jared.

Last week, the former first sisters were spotted heading to a Charlie XCX concert in Los Angeles.

In photos obtained exclusively by DailyMail.com, Malia was seen wearing a gray corset top and a pleated denim skirt.

She paired the outfit with black boots, a green hoodie and a black bag.

Sasha also wore a denim look with black boots and accessorized with a giant black belt around her waist and a red bag slung over her shoulder.

Malia pictured herself walking through West Hollywood party hopping, showing off a fake snake around her neck

Malia pictured herself walking through West Hollywood party hopping, showing off a fake snake around her neck

The sisters were joined at the afterparty by Troye Sivan, Kesha, Lily-Rose Depp with her friend 070 Shake and BLACKPINK’s Jennie.

The “Halloweekend” outing took place less than two weeks before the Nov. 5 presidential election.

Earlier this year, the Obama family formally endorsed Democratic candidate Kamala Harris.

The Harris campaign released a video in July showing the Democratic candidate taking a call from political power couple Barack and Michelle, where they revealed they were supporting her.

Sasha looked at her phone while holding a clear drink as she left the party. There appeared to be a bandage around her knee

Sasha looked at her phone while holding a clear drink as she left the party. There appeared to be a bandage around her knee

“Kamala!” The short segment began, with President Obama’s clear voice on the Vice President’s cell phone. “Hey there!” sounds in Michelle.

As Harris walked to her SUV, she said, “Oh hi, you’re both together. It’s good to hear you both.’

“I can’t make this phone call without telling my girl Kamala, I’m proud of you,” Michelle said. “This will be historic.”

“We were calling to say that Michelle and I couldn’t be more proud to support you and do everything we can to get you into the Oval Office through this election,” the former president added.