Finneas Baird O'Connell, known professionally as FINNEAS, is an American singer-songwriter, record producer, and multi-instrumentalist, born on July 30, 1997. He gained prominence for his work with his sister, Billie Eilish, co-writing and producing her critically acclaimed music. FINNEAS has received multiple Grammy Awards and Academy Awards for his contributions to music. He also pursues a successful solo career, releasing his own music.