Growing up in the town of Killarney, Ireland, brother-sister duo Greywind – Steph and Paul O’Sullivan – is a testament to resilience and the unbreakable bond between siblings. 

Raised by a classically-trained vocalist mom and a dad that cleaned gravestones, they were almost destined to end up creating art at the crossroads of beauty and sorrow. Over the last decade, Greywind has caught the attention of the world with their debut LP, Afterthoughts, which landed on the Official UK Rock Chart when it dropped in 2017, and produced multiple viral hits amassing the band millions of plays and a wealth of global followers. Their incredible live performances at festivals like Reading & Leeds and Download helped spread the word even further – Zane Lowe of BBC and Apple Music once declared that Greywind’s music was “a moment you won’t forget if you’re a fan of rock music.” and their rapidly growing cult-like fanbase would agree.

Alongside the triumphs came tribulations, though. As industry struggles and the isolation of a global pandemic forced Greywind back to their roots, the siblings refused to release any new music until they regained the rights to their debut album. After a long battle, they returned with their acclaimed Antidote EP in 2024, produced by Sam Guaiana (Neck Deep, Silverstein) and Casey Cavaliere (The Wonder Years). With it came multiple viral tracks like “Swing and Sway” and “Here’s Your Deathwish,” heavy rotation at SiriusXM and BBC Radio 1, and their first-ever U.S. tours. 

More inspired than ever, the band spent much of 2024 working on new music.  In January of 2025, they announced their signing with Frontiers Music’s new label imprint FLG, signaling the start of a new era on the horizon for Greywind.