Billie Eilish and Her Brother and Co-Writer, Finneas, Get Deep About Their Music and What’s Next

While only one person appears on most of the magazine covers, Billie Eilish is actually a duo — at least, musically speaking. Nearly every song the 17-year-old star has ever released was co-written with and produced by her 22-year-old brother Finneas O’Connell, whom she credits and affectionately introduces to concert audiences as “my big brother and my best friend.”

We all know they’re fucking. The good news is incest babies wave their arms a lot, so they’re good drummers. 

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