Billie Eilish Brother: Meet Finneas O’Connell, the Grammy-Winning Producer and Singer

Billie Eilish Brother: Meet Finneas O’Connell, the Grammy-Winning Producer and Singer

You probably know Billie Eilish as the pop sensation who swept the 2020 Grammys with her debut album When We All Fall Asleep, Where Do We Go?

But did you know that behind her success is not just her own—it’s a family affair.

Meet Finneas O’Connell, Billie’s older brother and the genius behind her hit songs.

They’re a dynamic duo, co-writing and producing chart-toppers like “Bad Guy” and “No Time to Die.”

Finneas isn’t in his sister’s shadow; he’s a Grammy-winning artist himself. With his EP “Blood Harmony” and debut album “Optimist,” he’s making waves in the music scene.

But his collaborations extend beyond Billie, working with stars like Selena Gomez and Camila Cabello.

As the youngest solo winner of the Grammy for Producer of the Year, Finneas is a musical prodigy.

But what’s their sibling dynamic like, and what’s next for him?

Let’s dive into the life and career of Finneas O’Connell, the man who adds his magic to Billie Eilish’s melodies.

A candid photo of Billie Eilish’s brother, Finneas O’Connell.
Finneas O’Connell: The Mastermind Behind Billie Eilish’s Success. [PHOTO: Instagram]

Who is Finneas O’Connell?

Finneas O’Connell was born on July 30, 1997, in Los Angeles, California, to Maggie Baird and Patrick O’Connell, who are both actors and musicians.

He has a younger sister, Billie Eilish, who was born on December 18, 2001.

He is of Irish and Scottish descent and was raised in the Coptic Orthodox faith.

Also, he attended Notre Dame High School in Sherman Oaks, California, where he graduated in 2015¹.

He started playing music at a young age, learning piano, guitar, bass, and drums.

He also took a songwriting class with his mother when he was 12 and began writing and producing his own songs.

Additionally, he was influenced by artists like The Beatles, Coldplay, Green Day, and Adele.

How did Finneas O’Connell become famous?

In 2006, Finneas O’Connell stepped into the limelight with a role in “Night at the Museum.”

Acting continued with TV shows like “Glee” and “Modern Family,” but music soon stole the spotlight.

He shifted gears, co-writing and producing for his sister, Billie Eilish.

Their breakthrough came with “Ocean Eyes,” launching a musical journey.

Finneas became Billie’s main collaborator, crafting hits like “When We All Fall Asleep, Where Do We Go?” and “Happier Than Ever.”

The duo made history at the Grammys, sweeping the major categories.

Beyond awards, Finneas is the youngest Producer of the Year.

From acting to conquering the music world, Finneas O’Connell is a force to be reckoned with.

Collaboration with Billie Eilish

Finneas and Billie’s musical partnership began when Finneas wrote a song called “Ocean Eyes” for his band, but decided to give it to Billie to sing.

They uploaded the song to SoundCloud in 2015, and it went viral, attracting the attention of music labels and fans.

They signed with Interscope Records, and released their debut EP, Don’t Smile at Me, in 2017.

Finneas and Billie Eilish’s creative synergy unfolds in their home studio, where Finneas crafts intricate instrumentals, and Billie adds her vocals and co-writes lyrics.

Using unconventional sounds, from a dental drill to a stapler, they craft distinctive beats.

Their music, drawn from personal experiences and emotions, resonates for its honesty and originality.

This dynamic duo has achieved remarkable success, with Grammy-winning albums like “When We All Fall Asleep, Where Do We Go?” (2019) and “Happier Than Ever” (2021).

Their single, “No Time to Die,” secured an Oscar, Golden Globe, and Grammy.

Beyond musical accomplishments, Finneas and Billie share a supportive sibling and artistic bond.

They perform together on stage, emphasizing mutual trust and respect for each other’s visions.

This unique partnership continues to captivate audiences and redefine the music landscape.


Who is Billie Eilish?

Billie Eilish is an American singer, songwriter, and musician.

Born on December 18, 2001, in Los Angeles, California, her full name is Billie Eilish Pirate Baird O’Connell.

She gained widespread recognition with her debut single “Ocean Eyes” in 2015, which was released when she was just 13 years old.

Billie Eilish’s unique musical style, characterized by a blend of pop, alternative, and electropop genres, has earned her critical acclaim and a massive global fanbase.

Her debut studio album, “When We All Fall Asleep, Where Do We Go?” (2019).

Topped charts worldwide and won several Grammy Awards, including Album of the Year and Best New Artist.

Known for her distinctive voice, thought-provoking lyrics, and bold fashion choices, Billie Eilish continues to be a prominent figure in the contemporary music scene.


What is Finneas O’Connell doing now?

Currently, Finneas O’Connell wears multiple hats as a prolific producer and solo artist.

His production credits extend to hits for Selena Gomez, Halsey, Camila Cabello, and Justin Bieber.

Collaborations with artists like Ashe, Demi Lovato, Julia Michaels, and Tove Lo showcase his versatility.

In his solo venture as FINNEAS, he released the EP “Blood Harmony” in 2019, featuring standout singles.

The debut album, “Optimist” (2021), added more compelling tracks to his repertoire.

Beyond music, Finneas delves into podcasting, presenting the thriller series “Blackout” with a stellar cast, available on Spotify and Apple Podcasts.

His commitment extends to humanitarian causes, advocating for LGBTQ+ rights, supporting refugees, and championing diversity and inclusion in the music industry.

A multifaceted talent, Finneas O’Connell continues to make waves across various creative realms.

Is Finneas O’Connell married?

Finneas O’Connell is not married, but he is in a relationship with Claudia Sulewski, who is a YouTuber, actress, and influencer.

They have been dating since 2018 and often share their love on social media.

They also have a podcast together called We Bought a House, where they talk about their life, relationship, and opinions on various topics.

Additionally, they live together in Los Angeles with their dog, Peaches.



Finneas O’Connell is a musical genius, who has made a huge impact on the music industry with his sister, Billie Eilish, and on his own.

He is a multi-talented and versatile artist, who can write, produce, sing, and perform.

He is also a humble and kind person, who values his family, his girlfriend, and his fans.

Indeed, he is one of the most influential and successful musicians of our generation, and we can’t wait to see what he does next.

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