Billie Eilish sings and performs with very few other live performers. However, one of these is her collaborator Finneas O’Connell, who is also her brother. The pair seemingly go everywhere together, but does she have other siblings?
Does Billie Eilish have any other siblings?
Billie Eilish, whose full name is Billie Eilish Pirate Baird O’Connell, was born to Maggie Baird and Patrick O’Connell on December 18, 2001.
Her older brother, Finneas, was born to Maggie and Patrick on July 30, 1997, and he was four-years-old when Billie was born.
In fact, Finneas suggested Billie should be called Pirate, hence it being included in her name.
Finneas is Billie’s only brother, however, and there are no other siblings in the Baird-O’Connell household.
Billie and Finneas grew up close together, given they were both homeschooled by their mother, Maggie.
The siblings took songwriting lessons from their mother as part of their learning, and Billie has said her brother and mother inspired her to get into music.
Their parents encouraged them to express themselves and explore art, dancing and acting, and Billie took a great interest in dance before she had an injury which spoiled her chances to pursue it further.
Billie wrote her first ‘real’ song in her mother’s songwriting class at 11-years-old, and the rest is history.
Who is Finneas O’Connell?
Finneas is Billie’s brother, but also her most frequent collaborator.
Speaking to Atwood magazine about his collaboration with his sister, Finneas, 22, said: “Being able to hear an artist and emulate them has been a huge part of being successful as a producer and co-writer…
“Well for Billie, if I’m writing a song alone for Billie like Ocean Eyes or Watch or Six Feet Under, I want to write a song that I think she’ll relate to and enjoy singing and empathise with the lyrics and make her own.
“And if I’m writing a song with Billie I’m just trying to help her tell whatever story she’s trying to tell, bounce ideas off of her, listen to her ideas.
“Similarly to other artists, if you’re writing and you know that someone else’s voice is going to be the voice telling the story, it should be a language that fits them. I think that’s the biggest key.”
Outside of his work with Billie, Finneas has released his own EP, Blood Harmony, and is a producer on work from a variety of different performers such as Selena Gomez, Halsey and Camila Cabello.
As part of Billie’s mammoth Grammy wins in 2020, Finneas won the Grammy for Producer of the Year, Non-Classical, as well as four Grammys alongside his sister.