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When fans hear ā€œBillie Eilish,ā€ some instantly think of cool hair and even better music. Outside of her music stardom, this artist goes by a much longer name due to her legal birth name.Ā 

Hereā€™s what we know about the ā€œHappier Than Everā€ performer and her real name.Ā 

Billie Eilish attends 2021 Costume Institute Benefit - In America: A Lexicon of Fashion at the Metropolitan Museum
Billie Eilish attends 2021 Costume Institute Benefit ā€“ In America: A Lexicon of Fashion at the Metropolitan Museum | Sean Zanni/Patrick McMullan via Getty Images

Billie Eilish is the artist behind Happier than Ever: A Love Letter to Los Angelesā€™

Eilish is a Grammy Award-winning artist who created the album When We All Fall Asleep, Where Do We Go with her older brother Finneas. She earned millions of plays on songs like ā€œBury a Friendā€ on Spotify, earning millions of views on her YouTube music videos in the process.

When she releases music and posts on social media, itā€™s predominately under the name ā€œBillie Eilish.ā€ Although she releases music under the stage name Billie Eilish, that name is not actually her full name.Ā 

What is Billie Eilishā€™s full name?

Her hairstyles, nail designs, and music aesthetic arenā€™t the only unique things about this performer. Billie is actually this artistā€™s first name and no, itā€™s not short for anything. However, ā€œEilishā€ is not the last name of the ā€œYou Should See Me In a Crownā€ artist.

ā€œ[Eilish] is my middle name,ā€ she explained in an interview with BBC. ā€œSo Iā€™m Billie Eilish Pirate Baird Oā€™Connell. Pretty weird, right? Pirate was going to be my middle name, but then my uncle had a problem with it because pirates are bad. Then Baird is my motherā€™s name.ā€

Eilish is pretty distinctive for a middle name and as a part of this performerā€™s stage name. According to Meaning of the Name, an Irish variant of the name Elizabeth, which itself means ā€œpledged to God.ā€

The ā€œPirateā€ in her name actually came from her brother, Finneas, who wanted to name the infant ā€œPirateā€ instead of a typical baby name.Ā 

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What is Finneasā€™ real name?

Eilishā€™s brother goes by his first name, Finneas, when performing. Sometimes, he appears alongside his sister, including during the Grammy Awards and at the One World: Together at Home virtual event. Other times, he writes and produces music as a solo artist.Ā 

ā€œI feel like the most immediate way to do that was to be really honest, and to make sure that anything I was putting my own name behind was really authentic, even if it was sort of embellished or made up, the way that Billie and I make up stories,ā€ Finneas said during an interview with Coup De Main Magazine of his solo project.

The full birth name of this artist is Finneas Baird Oā€™Connell.

Fans can learn more about this performer from her social media platforms. Music by Eilish, including her album When We All Fall Asleep, Where Do We Go, is available on music platforms like Spotify, Apple Music, and Tidal.