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    Who is Finneas O'Connell's sister? – Billie Eilish

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    Finneas O'Connell: 18 facts about the singer-songwriter and Billie Eilish's brother

    Finneas O'Connell Billie Eilish

    6. Who is Finneas O'Connell's sister? – Billie Eilish

    Finneas O'Connell's sister is singer Billie Eilish. He actually has songwriting and production credits on most of her songs and regularly appears in interviews with Billie to promote her music. Finneas described his relationship with his sister during an interview with Atwood magazine in April 2018. "We're a pretty close knit family to begin with so that’s not really super new," he said on touring together. "We get along really well so it’s been really nice." [Getty]

    1. Image 1: Finneas O'Connell facts
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    3. Image 3: Finneas O'Connell height
    4. Image 4: Finneas O'Connell net worth
    5. Image 5: Finneas O'Connell star sign
    6. Image 6: Finneas O'Connell Billie Eilish
    7. Image 7: Finneas O'Connell ethnicity
    8. Image 8: Finneas O'Connell nationality
    9. Image 9: Finneas O'Connell girlfriend Claudia Sulewski.
    10. Image 10: Finneas O'Connell dating girlfriend 19 images

    See the full gallery: Finneas O'Connell: 18 facts about the singer-songwriter and Billie Eilish's brother

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