Are Finneas and Billie Eilish Siblings
Yes, Finneas O'Connell and Billie Eilish are siblings. They are brother and sister who frequently collaborate on music and public appearances.
How Finneas and Billie Eilish Are Related
Finneas and Billie share the same parents, Maggie Baird and Patrick O'Connell. They grew up together in Los Angeles and began writing songs as children.
What They Create Together
The siblings work as a songwriting and production duo. Finneas often produces Billie's tracks and co-writes many of her hits.
For more details on their family and career, see the Billie Eilish biography on Wikipedia here.
