Billie Eilish Pirate Baird O'Connell is an American singer-songwriter born December 18, 2001, in Los Angeles. She gained attention at 14 with "Ocean Eyes" and became the youngest artist to win Grammy's Big Four categories in 2020. Known for her unique sound blending pop, alternative, and electronic elements, she's achieved multiple chart-topping albums and over 99 million monthly Spotify listeners.