Finneas O'Connell is an American musician, songwriter, and producer, known for his work with his sister, Billie Eilish. He has written and produced numerous songs for her, contributing significantly to her success. Besides his production work, Finneas is also a performer in his own right, releasing his own music and touring. He has received critical acclaim and several awards for his contributions to the music industry.
On July 30, 1997, Finneas Baird O'Connell, an American musician, songwriter, and actor, was born.
In 2010, at age 12, Finneas took a songwriting class with his mother and began writing and producing songs.
In 2011, Finneas played a student in the comedy film Bad Teacher.
In 2013, Finneas co-starred in Life Inside Out, written by and starring his mother Maggie Baird and directed by Jill D'Agnenica.
In November 2015, Finneas's manager reached out to him to discuss Billie Eilish's potential.
In 2015, Finneas played Alistair in the final season of the musical comedy-drama television series Glee.
In 2015, Finneas, as the lead singer and songwriter of the band The Slightlys, played the Warped Tour.
In 2017, Finneas co-wrote and produced Billie Eilish's debut EP Don't Smile at Me, which peaked at number 14 on the US Billboard 200.
In 2017, Finneas released the single "I'm in Love Without You".
Since September 2018, O'Connell has been in a relationship with YouTuber and actress Claudia Sulewski. His single "Claudia" was written after the night they met.
In 2018, Finneas released eight singles: "Break My Heart Again", "Heaven", "Life Moves On", "Landmine", "Hollywood Forever", "College", "Luck Pusher", and "Let's Fall in Love for the Night".
On June 25, 2019, Finneas released "I Lost a Friend", the first single from his debut EP, Blood Harmony.
On August 22, 2019, Finneas released "Shelter", the second single from his debut EP, Blood Harmony.
On September 20, 2019, Finneas released "I Don't Miss You At All", the third single from his debut EP, Blood Harmony.
On October 4, 2019, Finneas released his debut EP, Blood Harmony.
In October 2019, Finneas embarked on his first headlining tour, performing in five cities in the US, in addition to a performance at Austin City Limits.
In October 2019, Finneas released his debut EP, Blood Harmony, which includes "Let's Fall in Love for the Night", his most successful song to date.
In 2019, Finneas co-wrote and produced Billie Eilish's debut studio album, When We All Fall Asleep, Where Do We Go?, which debuted atop the US and UK charts.
In 2019, Finneas produced the single "Lose You to Love Me" by Selena Gomez, which peaked at number one on the Billboard Hot 100, and two tracks on the album Romance by Camila Cabello.
In early 2019, Finneas played his first sold-out headline shows in New York and Los Angeles.
On August 7, 2020, Finneas released a surprise deluxe version of Blood Harmony, featuring two new tracks, "Break My Heart Again" and "Let's Fall in Love for the Night (1964)".
In 2020, Finneas won the Grammy Awards for Producer of the Year, Non-Classical; Record of the Year and Song of the Year for Billie Eilish's "Bad Guy"; and Album of the Year and Best Engineered Album, Non-Classical for When We All Fall Asleep, Where Do We Go?.
On March 2, 2021, Finneas and Ashe released a collaboration titled "Till Forever Falls Apart", which he co-wrote and produced.
On August 5, 2021, Finneas announced that his debut studio album Optimist would be released on October 15, 2021, through Interscope Records, and shared its lead single "A Concert Six Months from Now".
On October 15, 2021, Finneas released his debut album Optimist through Interscope Records.
In October 2021, Finneas released his debut studio album Optimist through Interscope Records.
In 2021, Happier Than Ever by Billie Eilish was co-written and produced by Finneas.
In 2021, O'Connell composed the score for the teen drama film The Fallout.
In 2022, Finneas composed the score for the film Vengeance.
On August 8, 2024, Finneas announced that his second studio album For Cryin' Out Loud! would be released on October 4, 2024, and he released the title track as the lead single.
On October 4, 2024, Finneas's second album For Cryin' Out Loud! was released.
In 2024, Finneas released his second album, For Cryin' Out Loud!.
In 2024, Hit Me Hard and Soft by Billie Eilish was co-written and produced by Finneas.
In 2024, O'Connell endorsed the Kamala Harris presidential campaign.
On January 24, 2025, Finneas made his Like a Version debut with a cover of The Zombies' "Time of the Season".
On June 8, 2025 Finneas was struck by tear gas while protesting against mass deportations by ICE.
In 2025, O'Connell embarked on the United States leg of his tour in support of For Cryin' Out Loud!, starting on February 13, with a performance in Nashville, Tennessee.
On September 24th 2025, Finneas and Claudia Sulewski announced their engagement.
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