The sibling duo can be counted on to step out in chic, matching attire.&nbsp;

<a href="https://www.lofficielusa.com/music/billie-eilish-music-style-evolution-happier-than-ever-album" target="_blank" rel="noopener">Billie Eilish</a> has carved out a staple aesthetic for herself. It used to be baggy clothing sets. Now, she's grown up somewhat and matured her look to match. <a href="https://www.lofficielusa.com/fashion/billie-eilish-instagram-viral-blonde-shag-haircut" target="_blank" rel="noopener">Blonde hair</a> and corsetry accompany her in a new era of music and fashion.&nbsp;
Less appreciated and publicized are the satorial choices of her brother, <a href="https://www.lofficielusa.com/music/who-is-finneas-oconnell-everything-you-need-to-know-about-billie-eilish-brother" target="_blank" rel="noopener">Finneas</a> (our <a href="https://www.lofficielusa.com/men/finneas-new-solo-album-optimist-interview" target="_blank" rel="noopener">L'OFFICIEL Hommes USA Fall 2021 coverstar</a>), who is frequently spotted next to Eilish on red carpets and stages across the globe. The two do a lot together: perform, write music, <a href="https://www.lofficielusa.com/music/billie-eilish-documentary-trailer-the-worlds-a-little-blurry-apple-tv" target="_blank" rel="noopener">visit their parents</a>.
And there is one thing any good duo needs: coordinated outfits.

Photo: @finneas

At the "No Time To Die" premiere, the new Bond film in which Billie has a song, Finneas wore Armani while Eilish matched in head-to-toe Gucci.

At the 2021 Grammy Awards, the siblings wore coordinated pink Gucci outfits with matching masks.

Eilish and her brother matched in black at the Vanity Fair after party. As always, Eilish enlisted Gucci for this look. 

Eilish performed with her brother Finneas at the 2020 American Music Awards wearing painted khaki looks. 

Eilish and her brother released an acoustic performance of her song “Your Power” in coordinated neutral tones. Of course, Eilish managed to slip in a monogrammed Gucci pant to complete the look.

For their performance at the 2021 Grammy Awards, the duo donned green, embroidered outfits. Eilish’s came with an emerald headpiece to match her green hair.

Despite her foot injury, Eilish and her brother still threw on their best monogramed Gucci looks and took the stage at SNL during the 2019 season. 

Eilish and Finneas donned white versions of their classic monogrammed Gucci attire to perform at the Grammys in 2020.

For a 2019 concert in Oregon, Eilish and FInneas wore all white looks. Eilish’s came with an orange spray paint motif. 

The siblings appeared on “The Late Show with Stephen Colbert” to perform Eilish’s new song “Your Power” in coordinated beige looks and matching sunglasses.  

Photo: @billieeilish

Billie Eilish and Finneas' Best Matching Looks

Billie Eilish and Finneas' Best Matching Looks

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