10 Shocking New Facts About FINNEAS: From 2025 Engagement To His Secret New Band

FINNEAS O'Connell, the multi-hyphenate artist, songwriter, and producer, is currently navigating his most monumental year yet, with a series of major professional and personal updates that have redefined his career beyond his iconic work with sister Billie Eilish. As of late 2024 and early 2025, the music world is buzzing about his highly anticipated sophomore solo album and a new super-duo project, cementing his status as a standalone musical force.

The latest headlines, which include a major personal milestone and a 2025 North American tour, confirm that FINNEAS is stepping fully into the spotlight. From his record-breaking work on "What Was I Made For?" to the launch of his new band, here is a deep dive into the most current and essential facts about the music industry's most sought-after genius.

FINNEAS O'Connell: Complete Biography & Profile

Full Name: Finneas Baird O'Connell

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Date of Birth: July 30, 1997

Age: 28 (as of December 2025)

Place of Birth: Los Angeles, California, U.S.

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Nationality: American

Occupation: Singer-songwriter, Record Producer, Actor

Known For: Writing and producing music for his sister, Billie Eilish. Solo work includes the album Optimist and the EP Blood Harmony.

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Major Awards: 10 Grammy Awards, 2 Academy Awards (Oscars), 2 Golden Globe Awards (including a 2024 win for "What Was I Made For?")

Relationship Status: Engaged to Claudia Sulewski (September 2025)

Early Career: Lead singer of the band The Slightlys. Acting roles in Glee and Modern Family.

The 2025 Solo Tour and Sophomore Album: 'For Cryin' Out Loud!'

FINNEAS marked a massive step in his solo career with the October 4, 2024, release of his highly anticipated sophomore album, For Cryin' Out Loud!. This follow-up to his critically acclaimed 2021 debut, Optimist, showcases his evolution as a songwriter and a true solo artist, moving beyond his producer identity.

The album's release has been coupled with the announcement of a major tour, solidifying his commitment to his own musical brand.

• Album Release: For Cryin' Out Loud! was released in late 2024 via Interscope Records.
• The Tour: He is scheduled to embark on the "For Cryin' Out Loud! The Tour" across North America in 2025. This extensive run of dates gives fans a chance to experience his new music live, distinguishing his sound from the arena-filling performances with Billie Eilish.
• Creative Shift: While Optimist explored deep, introspective themes, early reviews suggest For Cryin' Out Loud! leans into a more expansive, genre-bending sound that incorporates his experience producing for a diverse range of artists.

This period of solo focus is critical for FINNEAS, allowing him to demonstrate his unique voice and production style that has been honed over years of collaborative work. The 2025 tour is expected to be a major highlight for fans of his individual artistry.

A Secret Duo and High-Profile Engagement: Personal Milestones

While his solo career is booming, FINNEAS has also made major moves in his personal life and with a brand-new collaboration. These recent updates have captivated fans and the media alike, proving that his creative energy is boundless.

The Favors: A New Collaboration with Ashe

In a surprising twist, FINNEAS has formed a new music duo called The Favors with fellow singer-songwriter Ashe, known for her hit "Moral of the Story". This partnership is not just a one-off song; it's a full-fledged band with an album on the way.

• Debut Album: The Favors are set to release their debut album, titled The Dream, on September 19, 2025.
• The Connection: FINNEAS and Ashe previously collaborated on the hit song "Till Forever Falls Apart," indicating a strong creative chemistry that led to the formation of the new group.
• Unique Sound: The duo promises a unique blend of their respective styles, allowing FINNEAS to explore a different collaborative dynamic outside of his work with Billie Eilish.

Engagement to Claudia Sulewski

Perhaps the most-talked-about personal news is FINNEAS's engagement to his longtime girlfriend, actress and YouTuber Claudia Sulewski. The couple, who have been together for several years, announced their engagement in September 2025.

• The Proposal: The proposal was announced shortly after the couple attended the 2024 Vanity Fair Oscar Party and the 2025 LACMA Art+Film Gala, showcasing their continued high-profile presence.
• Relationship Timeline: Their relationship has been a staple of the music and social media world, with Claudia often appearing on the red carpet with FINNEAS and Billie Eilish.
• A Muse: FINNEAS has often credited Claudia as a major inspiration for his solo music, making this engagement a beautiful culmination of their journey together.

The Producer Powerhouse: Collaborations Beyond Billie Eilish

While he is best known for his symbiotic partnership with Billie Eilish, which has yielded global hits like "Bad Guy," "Happier Than Ever," and the James Bond theme "No Time to Die," FINNEAS is one of the most in-demand producers in the industry. His ability to craft intimate, genre-defying soundscapes has made him a favorite for A-list artists seeking a fresh sound.

His impressive discography and list of collaborations showcase his versatility and topical authority in the pop music landscape. He has won multiple Grammy Awards, including the prestigious Producer of the Year (Non-Classical).

Key Production Credits and Collaborations:

• Rosalía: He co-wrote and produced the bilingual single "Lo Vas a Olvidar".
• Justin Bieber: FINNEAS has contributed to Justin Bieber's work, demonstrating his reach into mainstream pop.
• Camila Cabello: His production touch can be found on tracks for the former Fifth Harmony member.
• Tove Lo: He worked as a writer and producer on the song "Passion and Pain Taste the Same When I'm Weak".
• Benny Blanco: He has also collaborated with other top producers like Benny Blanco.

The continued success of the Billie Eilish and FINNEAS partnership remains a cornerstone of his career. Their co-written song "What Was I Made For?" from the Barbie soundtrack dominated the 2024 awards season, earning them an Academy Award and a Golden Globe for Best Original Song, adding to their already impressive collection of accolades. This success ensures that even as he pursues his solo endeavors, the world continues to recognize the power of the O'Connell sibling duo.