Billie Eilish’s Brother Finneas Explains Why He Doesn’t Go By A Last Name, And I Had No Idea Eilish Wasn’t His Sister's Last Name Either

Much like when I found out that Zendaya’s last name is Coleman, I was shook when I found out that Billie Eilish and Finneas’ legal last name is O’Connell. The siblings have been megastars for years now, and for some reason, I never thought about their last name. This was especially true for Billie, I just assumed her legal surname was Eilish. However, it’s not, and the siblings hilariously explained why that is.

Since 2019, and the release of “Bad Guy,” the world has been aware of Billie Eilish and her brother Finneas. They’ve created massive tracks for Eilish, became Oscar winners in 2022 for their James Bond song “No Time To Die,” and produced “What Was I Made For” which was featured in the 2023 movie schedule hit "Barbie."