How Old Is Billie Eilish 2025 Age. Conclusion biography of billie eilish billie eilish, born billie eilish pirate baird o'connell, entered the world on december 18, 2001, in los angeles, california. Raised in a family of musicians.

Billie eilish age & birthday billie eilish is best known as pop singer who has born on december 18, 2001 in los angeles, ca. A look at her current relationship status, past boyfriends, and rumors surrounding her love life.