Finneas Biography 

Finneas Baird O’Connell, professionally known simply as Finneas, is an American singer, songwriter, record producer, and actor born in Los Angeles, California. An American citizen, Finneas has become one of the most influential music producers of his generation, best known for his extensive work with his younger sister, singer Billie Eilish, as well as his own successful solo career.

Since co writing and producing Eilish’s breakout single in 2015, Finneas has built a career that includes multiple Grammy Awards, two Academy Awards for Best Original Song, and a growing catalog of solo albums that showcase his own voice as an artist. He has also composed music for film and television and remained an outspoken advocate on social and political issues. This article looks closely at his upbringing, his creative partnership with his sister, his solo work, and the personal life behind one of pop music’s most consistently successful songwriters.

Finneas Early Life

Finneas was born on July 30, 1997, in Los Angeles, California. He grew up in a household steeped in creativity, as the son of actress and screenwriter Maggie Baird and actor Patrick O’Connell. His younger sister, Billie Eilish, was born four and a half years after him, and the two grew up close, eventually becoming one of the most successful sibling songwriting partnerships in modern music.

As a child, Finneas began writing and recording his own songs around the age of twelve, teaching himself production techniques that would later define his signature sound. His early exposure to acting came alongside his music, appearing in his first film role at the age of thirteen. His parents supported both his musical and acting pursuits, homeschooling him and his sister in a way that allowed flexibility for auditions, recording sessions, and creative projects from a young age.

Finneas State of Origin

Finneas was born and raised in Los Angeles, California, a city that has shaped both his career and his artistic identity. Much of his early recording work, including sessions with his sister Billie Eilish, took place in the modest home studio built in his childhood bedroom in the Highland Park neighborhood of Los Angeles. That same home studio produced much of Eilish’s early breakthrough material and later work on his own solo albums.

Los Angeles remains central to his career today. He continues to record extensively from his home studio in the city, and much of his professional life, including his work in film scoring and songwriting collaborations, remains rooted in the city’s entertainment industry.

Finneas Career

Early Acting Roles

Before becoming known primarily as a musician, Finneas pursued acting as a child and teenager. He made his film debut alongside Cameron Diaz in the 2011 comedy Bad Teacher. He went on to appear in the film Life Inside Out in 2013, performing alongside his mother, and later had recurring roles on the television series Modern Family and Aquarius. In 2015, he played the recurring character Alistair on the sixth season of the musical drama series Glee, an experience that further connected him with the world of music performance.

Songwriting and Producing for Billie Eilish

Finneas’s career took a defining turn in 2015 when he co wrote and produced Ocean Eyes, a song originally written for his own band that instead became his sister Billie Eilish’s breakout single. From that point forward, he became the primary songwriter and producer behind nearly all of Eilish’s music, including her debut studio album When We All Fall Asleep, Where Do We Go? released in 2019.

Their partnership continued through Eilish’s subsequent albums, Happier Than Ever in 2021 and Hit Me Hard and Soft in 2024, both of which Finneas produced. Their creative collaboration has produced some of the most commercially successful and critically acclaimed pop music of the past decade, earning the siblings numerous Grammy Award nominations and wins together.

Solo Music Career

While his work with Eilish brought him initial recognition, Finneas has also built a respected solo career under his own name. He released his debut extended play, Blood Harmony, in October 2019, which reached the top five of Billboard’s Next Big Sound chart. His debut full length album, Optimist, followed in 2021, showcasing a more piano driven and vocally assertive sound than his earlier work.

His second studio album, For Cryin’ Out Loud!, was released in October 2024, following the lead single of the same name that August. The album charted internationally, reaching number eighty two on the Billboard 200, and represented a more uplifting and horn inflected direction in his solo material.

Film and Television Scoring

In addition to his songwriting, Finneas has composed original scores for film and television. He scored the 2021 high school drama film The Fallout, directed by Megan Park. In 2024, he composed the score for the Apple TV Plus thriller series Disclaimer, directed by Alfonso Cuaron, further expanding his reputation as a composer beyond pop songwriting.

Finneas Discography

• Blood Harmony (2019)
• Optimist (2021)
• For Cryin’ Out Loud! (2024)

Finneas Awards and Achievements

Finneas has become one of the most decorated songwriters of his generation. In 2022, he won the Academy Award and Golden Globe Award for Best Original Song, along with a Grammy Award for Best Song Written for Visual Media, for No Time to Die, from the James Bond film of the same name. In 2024, he won a second Academy Award and Golden Globe Award for Best Original Song for What Was I Made For?, from the film Barbie, along with the Grammy Award for Song of the Year, making him one of the youngest two time Academy Award winners in history.

His work with Billie Eilish on Hit Me Hard and Soft earned multiple Grammy nominations in 2025, including Album of the Year, Record of the Year, and Song of the Year for the single Birds of a Feather. In 2026, he won the Grammy Award for Song of the Year for Wildflower, again shared with his sister. Earlier in his career, at the 2020 Grammy Awards, he won six awards for his work on Eilish’s debut album, including Producer of the Year, Non Classical.

Finneas Activism

Finneas has used his public platform to speak on political and humanitarian issues. Since the beginning of the war in Gaza, he has been a vocal advocate for Palestinian human rights. At the 2024 Academy Awards, he and his sister wore Artists4Ceasefire pins on the red carpet, calling for a permanent ceasefire and humanitarian aid access. In 2025, he appeared in the Together for Palestine video campaign, which called for an end to violence in the region and directed proceeds toward Palestinian led relief organizations. He has also spoken publicly in support of political causes closer to home, including endorsing the 2024 presidential campaign of Kamala Harris, and was affected by tear gas while participating in a protest against mass deportations in June 2025.

Finneas Personal Life

Finneas has been in a relationship with YouTuber and actress Claudia Sulewski since September 2018. His song Claudia, from his debut album, was written about the night the two met. The couple announced their engagement in September 2025 and were married on August 29, 2026. Finneas has spoken openly in interviews about how his relationship and his close bond with his family have shaped both his music and his approach to balancing a demanding creative career with his personal life.

Conclusion

Finneas O’Connell’s career illustrates how a shared creative partnership with family can grow into one of the most influential forces in modern popular music. From his early acting roles to his songwriting breakthroughs with his sister Billie Eilish, and from his own acclaimed solo albums to his work scoring film and television, Finneas has proven himself a versatile and enduring creative force. Paired with his consistent use of his platform for humanitarian causes, his career reflects both artistic achievement and a willingness to speak out on issues he cares about.

FAQs

Who is Finneas?

Finneas, full name Finneas Baird O’Connell, is an American singer, songwriter, and record producer known for his work with his sister Billie Eilish and his own solo music career.

When was Finneas born?

Finneas was born on July 30, 1997, in Los Angeles, California.

How many Academy Awards has Finneas won?

Finneas has won two Academy Awards for Best Original Song, for No Time to Die in 2022 and What Was I Made For? in 2024.

What are Finneas’s solo albums?

His solo albums are Optimist, released in 2021, and For Cryin’ Out Loud!, released in 2024, along with his debut extended play Blood Harmony from 2019.

Is Finneas married?

Yes, Finneas married Claudia Sulewski on August 29, 2026, after the couple became engaged in September 2025.

Has Finneas composed for film and television?

Yes, he composed the score for the 2021 film The Fallout and the 2024 Apple TV Plus series Disclaimer.