Finneas Baird O'Connell (born July 30, 1997), also known as Finneas (stylized in all caps), is an American songwriter, record producer, singer, musician, and actor. He has written and produced music for various artists including his younger sister, singer Billie Eilish. He won five Grammy Awards, including Album of the Year, Producer of the Year, Non-Classical and the Best Engineered Album, Non-Classical for his work on Eilish's debut album When We All Fall Asleep, Where Do We Go? (2019). Finneas has released several singles as a solo artist, and his debut EP, Blood Harmony, was released on October 4, 2019. As an actor, O'Connell starred in the 2013 independent film Life Inside Out. He is also known for his role as Alistair in the Fox musical comedy-drama series Glee.