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Sheā€™s a unique artist with unique music. It only makes sense that her full legal name is equally as unique. Turns out, ā€œBad Guyā€ artist, Billie Eilish, has a few different middle names in her legal birth name and Eilish is one of them. What is Billie Eilishā€™s last name? Hereā€™s our look into the meaning of Billie Eilishā€™s real name, Billie Eilish Pirate Baird Oā€™Connell.

Billie Eilish isnā€™t this Grammy Award-winning artistā€™s full name

Some know her as the artist behind songs like ā€œBury a Friendā€ and ā€œBad Guy.ā€ Others know her as the singer in the Grammy Award-winning album, When We All Fall Asleep, Where Do We Go. Billie Eilish is one of the youngest performers dominating the music industry and multiple award shows.Ā 

When sheā€™s performing, the artist goes by her first name, Billie, and one of her middle names, Eilish. She also releases music and YouTube videos as ā€œBillie Eilish.ā€ Her last name, however, is the same name shared with her brother and the other members of her family.

What is Billie Eilishā€™s real name?

Although some fans just know her by her first and middle name, Billie Eilish has a few different legal names. The ā€œBad Guyā€ performerā€™s full name is actually Billie Eilish Pirate Baird Oā€™Connell. Her first last name is actually the last name of her mother, Maggie Baird. Her second last name comes from her father.

According to Insider, Billie Eilishā€™s parents, Maggie Baird and Patrick Oā€™Connell, ā€œwho are both actors, apparently wanted her first name to be ā€˜Eilishā€™ after they watched a documentary about conjoined Irish twins, Katie and Eilish Holton.ā€Ā 

When Maggie Bairdā€™s father, named Bill, died during her pregnancy, they changed their minds, naming their daughter after him. Billie Eilishā€™s second middle name, Pirate, actually was an idea from Billie Eilishā€™s older brother, Finneas. He was only 4-years-old at the time of her birth and became dead set on calling her ā€œPirate.ā€

Billie Eilish performs during The BRIT Awards 2020
Billie Eilish performs during The BRIT Awards 2020 | Samir Hussein/WireImage
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Billie Eilishā€™s brother also, technically, uses a stage name

Thereā€™s another mastermind behind the music of Billie Eilish. The artist creates a number of her songs with her brother, Finneas. This performer also has a number of solo songs, as well as a stage name to accompany them. While performing and releasing music, he only goes by his first name.

Finneasā€™s full legal name is Finneas Baird Oā€™Connell, meaning he also has the last name of his mother incorporated into his name. Together with his sister, the duo accepted a number of Grammy Awards, including Album of the Year and Song of the Year for ā€œBad Guy.ā€

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