London-born singer-songwriter Sienna Spiro doesn’t just write heartbreak songs — she turns them into cinematic experiences. With her breathtaking new single “Die On This Hill”, out now via Capitol Records, Sienna bares her soul with a voice that’s equal parts defiant and delicate. Co-written with Omer Fedi, Michael Pollack, and Blake Slatkin, and elevated by a lush string arrangement from GRAMMY® winner Rob Moose, the ballad captures the quiet devastation of loving someone you know you should leave. “It’s about stubborn love,” Sienna says. “The kind that makes you stay when you know you shouldn’t.”

At just 20, Sienna has already carved out a space uniquely her own — timeless yet modern, vulnerable yet commanding. She’s currently lighting up stages as the opener for Sam Smith’s “To Be Free: New York City” residency, bringing her haunting vocals to intimate rooms filled with hushed awe. With her debut EP Sink Now, Swim Later and viral gems like “MAYBE” and “Origami” earning praise from Rolling Stone, Dazed, and CLASH, Sienna’s ascent feels both inevitable and deserved.