---
title: "Billie Eilish at Her Brother's Wedding: A Chocolate Dress from Ukrainian Brand Anna October and a Performance for the Newlyweds"
description: "Billie Eilish appeared at her brother Finneas's wedding in Montecito wearing a chocolate silk dress from Ukrainian brand Anna October. In this outfit, the artist also performed a song for the newlyweds."
date: 2026-09-06T11:10:00.000Z
lang: en
url: https://xab.info/en/posts/billie-eilish-chocolate-dress-ukrainian-brand-anna-october-brothers-wedding
tags: [billie-eilish, anna-october, wedding, fashion, finneas, ukrainian-brand]
publisher: "XAB.info"
---

# Billie Eilish at Her Brother's Wedding: A Chocolate Dress from Ukrainian Brand Anna October and a Performance for the Newlyweds

![Billie Eilish at her brother's wedding wearing a black hat and round sunglasses](https://xab.info/media/2026/09/06/billie-aylish-suknya-ukrayinskogo-brendu-anna-october-na-svadbe-brata/billie-aylish-suknya-ukrayinskogo-brendu-anna-october-na-svadbe-brata-1.webp)

## 🎯 Key Points

- Billie Eilish attended her brother Finneas O'Connell's wedding, which took place on August 29, 2026, in Montecito, California.
- The artist chose a chocolate silk dress with a corseted bodice from Ukrainian brand Anna October, valued at 37,526 hryvnia.
- In the Anna October outfit, Billie Eilish took the stage to perform a song for the newlyweds.
- On the wedding day, she also tried on a green dress by House of Gilles, in which she attended the ceremony.

American singer Billie Eilish became one of the central figures at the wedding of her brother Finneas O'Connell and his partner Claudia Sulewski, which took place on August 29, 2026, in Montecito (California). The celebration was held in an intimate circle of family and close friends, yet the attention of the press and social media was drawn not only to the guest list but also to the artist's wardrobe. According to data published on the brand's own social media, Billie Eilish appeared at the ceremony in an outfit by the Ukrainian fashion house Anna October, which put Ukrainian fashion in the spotlight alongside other world-renowned houses represented at the event.

### Look at the Ceremony and the Performance

For the celebration, the artist chose a silk dress in a rich chocolate shade with thin straps, a fitted silhouette, and a corseted bodice that accentuated her figure. It was in this outfit that Billie Eilish took the stage to perform a song for the newlyweds, turning the musical number into one of the emotional highlights of the evening. It is also noted that, as part of the day, she also tried on a green dress created for her by the fashion house House of Gilles, in which she attended the actual wedding ceremony of her brother and his partner.

### Ukrainian Brand in the Spotlight

The key element of the look was the dress by Anna October, which, according to the description on the brand's official website, is valued at 37,526 hryvnia. The minimalist silhouette, corseted top, and deep chocolate shade, in the view of observers, created a striking yet understated look that fit organically into the atmosphere of an intimate family celebration. The choice of the Ukrainian house became a notable signal for audiences following what stars wear at international events.

### Wedding Details and Celebrity Guests

The bride prepared four looks by Oscar de la Renta for the event — for the rehearsal dinner, the ceremony itself, the first dance, and the celebratory party — while Finneas O'Connell chose a Prada suit. Among the guests at the celebration, reportedly, were Justin and Hailey Bieber, Kristen Bell, Nina Dobrev, Emma Chamberlain, Rachel Sennott, Nat Wolff, and other celebrities, which underscored the event's status in the media landscape.

### The Couple's Story

Finneas O'Connell and Claudia Sulewski met in 2018 through the dating app Raya. According to available information, within a month they confessed their feelings to each other, and about a year later they moved in together. In September 2025, the musician proposed to Claudia, and on August 29, 2026, the couple officially became a family in Montecito. Billie Eilish's performance in the Anna October dress became a personal note in this family celebration and simultaneously a public showcase of Ukrainian design against the backdrop of world brands.

## 🔍 Fact-Check Verification

- [Billie Eilish Chose a Dress from a Ukrainian Brand for Her Brother's Wedding: How Much It Costs](https://wave.rbc.ua/ukr/style/billi-aylish-obrala-suknyu-ukrayinskogo-brendu-1788692717.html) - Подтверждает участие Билли Айлиш на свадьбе брата 29.08.2026 в Монтесито, наряд от Anna October (шоколадное шелковое платье с корсетным лифом, 37 526 гривен), примерку платья House of Gilles, состав гостей и историю пары. Данные о цене и брендах опираются на соцсети бренда и сайт бренда.
- [Billie Eilish Released a Touching Soundtrack for the Film "Barbie" (Video)](https://www.unian.net/lite/music/billi-aylish-vypustila-trogatelnyy-saundtrek-k-filmu-barbi-video-12328230.html) - Подтверждено по источнику unian.net

## ❓ FAQ

### Q: What dress was Billie Eilish wearing at her brother's wedding?
**A:** The artist appeared in a chocolate silk dress with thin straps and a corseted bodice from Ukrainian brand Anna October, and also tried on a green dress by House of Gilles.

### Q: How much does the Anna October dress cost?
**A:** According to the description on the brand's official website, the outfit is valued at 37,526 hryvnia.

### Q: When and where did Finneas O'Connell's wedding take place?
**A:** The wedding took place on August 29, 2026, in Montecito, California, in the presence of family and close friends.