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Does Billie Eilish Have a Sister?

Billie Eilish, who was born Billie Eilish Pirate Baird O’Connell, is an American pop star. She has been taking the world by storm since 2015, when her song Ocean Eyes went viral on the music website Sound Cloud. 

The world has become well acquainted with Billie, but what about the rest of Eilish’s family? What are her parents like? Does Billie Eilish have a sister or brother? The internet sure likes to speculate about the possibility. 

Does Billie Eilish Have a Sister

The Eilish Family

Billie Eilish grew up in southern California with her parents, Maggie Baird and Patrick O’Connell, as well as her brother, Finneas. She doesn’t have any other siblings, So, to answer the question set, Billie Eilish does not have a sister, only one brother, Finneas. Eilish’s parents raised her and Finneas in a creative environment and encouraged them to try new things and pursue their passions.

She was born in 2001 and has been musically creative since a young age. She completed her first full song by age 11 but was writing even before that.

It is well known that the two siblings are very close. Billie works alongside her brother, producing music and writing song lyrics. This includes her first viral success, Ocean Eyes. 

Finneas is about four years older than Billie, born in 1997. He might also be partially responsible for people thinking that Billie has a sister, because… 

Who is Claudia Sulewski?

Finneas is in a relationship with a girl named Claudia Sulewski, who has been seen with Billie before online. Some people online mistook Sulewski for Billie’s sister. So, this could be where rumors of a third O’Connell sibling came from, as well as the source of the question, Does Billie Eilish Have a Sister?

She has been in multiple social media posts with both Finneas and Billie. So, people took note of the recurring person and questioned who she was and whether she was a relation to the other two. 

The Unstoppable Sibling Duo

Sibling Duo

And both Billie and Finneas’s separate careers continue to flourish; they are still each other’s biggest supporters. After Billie started getting global recognition, Finneas started releasing his own solo work. He released his first Ep titled Blood Harmony in 2019. He followed it up with a studio album in 2021 called Optimist

He continues to write and work with Billie, most recently on her album Happier Than Ever.

Want to listen to some superb songs?

Then check out our thoughts on the Best Songs About Dreams, the Best Songs about Having a Baby, the Best Songs About Change, the Best Songs About Clouds, the Best Songs About Friendship, and the Best Songs About Magic for some great song selections.

Also, you need to hear all those songs in all their magnificence. So, check out our comprehensive reviews of the Best Bluetooth Headphones Under $100, the Best Headphones Under $200, the Best Cheap Earbuds Under $100, the Best Headphones for Music, as well as the Best Sound Quality Earbuds that you can buy in 2023.

What the Future Holds for Billie Eilish

Billie has embarked on her Happier Than Ever world tour, which currently boasts 77 shows on multiple continents. Finneas is also on the tour, and they even perform her song Your Power together. The emotional song is definitely one of the highlights of the show.

Maybe you have been lucky enough to see it in person already. One thing is for sure, Billie and Finneas aren’t going anywhere and will continue to make music together and separately for a long time. They are both equally unstoppable in their own right.

Until next time, happy listening.

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