A behind-the-stars songwriter, music producer, and actor as well as a singer/songwriter in his own right, Los Angeles native Finneas O'Connell -- aka Finneas -- is recognized for his sleek and intimate alternative pop style. Emerging on the international stage first as an actor -- he appeared in the film Bad Teacher (2011) and on TV's Glee (2015), among other roles -- in his teens, he drew accolades in the late 2010s for his Grammy-nominated contributions to the outcast anthems of his sister, Billie Eilish. Following the March 2019 release of her first full-length, When We All...