Yes, Billie Eilish has a brother, Finneas O'Connell, who is also her primary collaborator, songwriting partner, and producer for most of her music, with them often creating songs together in their home studio.
Eilish's creative process was the focus of the conversation, particularly her songwriting partnership with elder brother Finneas O'Connell. The pair work closely on all of Eilish's recorded material, spanning from breakout track “Ocean Eyes” (2015) and through to their 2024 hit “Birds of a Feather.”
Billie Eilish has been diagnosed with Tourette syndrome (TS), a neurological disorder causing involuntary movements or sounds (tics) like eyebrow raises, jaw clicks, and shoulder shrugs, which she revealed publicly and has spoken about openly, noting that stress can worsen them but deep focus on music or performing helps reduce them. She also experiences synesthesia, seeing colors with sounds, which aids her creative process.
Billie Eilish has said that her brother Finneas O'Connell is her "best friend forever." In a sweet Instagram tribute for his 26th birthday, Billie wrote that she "will never love anyone as much as" she loves her older sibling, adding, "You are the best thing I have."
Last night Billie Eilish surprised fans by bringing out her brother Finneas to perform with her at the Manchester Coop Arena.
Finneas has an estimated net worth of $28 million in 2025. Finneas' net worth in 2025 consists of earnings from his illustrious career as a musician and actor. He is most famous for writing and producing music for multiple artists, most notably his younger sister Billie Eilish.
The 22-year-old singer first publicly discussed being attracted to women in her November 2023 cover story with Variety and was asked about coming out while attending the publication's Hitmakers event a month later.
Bisexual women, especially, are often accused of being LGBTQ phonies or “tourists.” But there is no burden of proof for queerness, Candice Helfand-Rogers writes. Singer Billie Eilish is bisexual – she has said so herself. Sometimes even in, shall we say, “colorful” terms.
Finneas O'Connell, brother of Billie Eilish and musician (FINNEAS) in his own right, plays Jason, who goes on a third date with Stephanie Hsu's Ruby early on in the series.
Does Billie Eilish have a mental illness? Yes, Billie Eilish has been open about her struggles with anxiety, depression, and Body Dysmorphic Disorder (BDD). She has spoken candidly about her mental health challenges, including periods of severe depression and suicidal thoughts, especially during her teenage years.
Pickuplines | 🎤 Interesting fact: Billie Eilish has Tourette's syndrome and has spoken openly about experiencing both motor and vocal tics, explaining...
I've never felt desirable. I've never felt feminine. I have to convince myself that I'm, like, a pretty girl,” Eilish explained. “I identify as 'she/her' and things like that, but I've never really felt like a girl.”
“I think the longest, biggest argument was during a period of transition in maybe both of our lives where we were just trying to be kind of honest,” he shared as his younger sister nodded in agreement. “To give [Billie] credit, I was very much high and mighty about, like, 'You're not being honest or authentic enough.
Billie Eilish and Finneas O'Connell's mom is explaining why her kids are not really “nepo babies.” In a new interview, Maggie Baird reacted to claims that her children are “nepo babies” because she and husband Patrick O'Connell are actors and musicians. Keep reading to find out more…
Taylor Swift knows all too well that shade never made anybody less gay. So much so that she's been a super active supporter of the LGTBQ+ community over the years, often speaking out and making important moves to make sure everybody, no matter how they identify, feels seen and equal.
She first gained public attention in 2015 with her debut single "Ocean Eyes", written and produced by her brother Finneas O'Connell, with whom she collaborates on music and live shows.
Billie Eilish perfumes are generally designed to be unisex, which means they can be worn by individuals of any gender.
Billie Eilish was diagnosed with Tourette syndrome (TS) at age 11 and publicly revealed her diagnosis in 2018, explaining that she experiences subtle physical and vocal tics, like ear wiggles and jaw clicks, which she manages by focusing on her music and activities she enjoys.
In the past, Eilish has also been in low-key romances with rapper Brandon "Q" Adams and actor Matthew Tyler Vorce. Here's a look back at Billie Eilish's dating history from "Q" to Nat Wolff.
Patrick Mead O'Connell (born July 7, 1957) is an American actor. He is the husband of Maggie Baird and father of Billie Eilish and Finneas O'Connell.
Many celebrities identify as LGBTQ+, including actors like Elliot Page, Jodie Foster, Neil Patrick Harris, Cynthia Nixon, and Laverne Cox; musicians such as Janelle Monáe, Lil Nas X, Miley Cyrus, and Ricky Martin; and public figures like Ellen DeGeneres and George Takei, covering a wide range of identities including gay, lesbian, bisexual, queer, and transgender, with many using their platform to be visible and advocate for the community.
Billie's natural hair color is blonde. These photos are of her without any dye in her hair. For the majority of her early career and the Don't Smile at Me era, Billie had white or silver hair. She used this hairstyle for the majority of 2018.
Billie Eilish's most popular song varies by metric, but "Bad Guy" was her breakout global hit, while "BIRDS OF A FEATHER" from her latest album is currently her most-streamed song on Spotify and a huge global success, alongside collaborations like "lovely" (with Khalid) and Oscar-winning theme songs like "What Was I Made For?".