Billie Eilish’s Pirate Baird O’Connell is an American musician. She was born on December 18, 2001 in Los Angeles, California, United States

She first gained public awareness in 2015 with her debut single “Ocean Eyes,” which was later launched by Interscope Records’ Darkroom subsidiary.

Since her debut, she has captured the hearts of many music lovers with her soothing voice.

Since her debut in the music and entertainment industries, Billie Eilish has earned many awards

Her parents are Maggie Baird and Patrick O’Connell.

Is Billie Eilish a twin?

Well from sources she is not a twin. She just has an older brother, Finneas Baird O’Connell, who resembles her so much.

Who is Billie Eilish’s brother?

Finneas Baird O’Connell, commonly known as Finneas, is a singer-songwriter, record producer, and actor from the United States.

He has written and produced songs for a range of artists, including his sister, Billie Eilish. He has eight Grammy Awards to his name, as well as 13 nominations, including nods for all four of the Big Four.

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