Sienna Spiro

Sienna Spiro is a 20-year-old British singer-songwriter from London who went from posting TikTok covers at 16 to amassing nearly 900 million Spotify streams and landing on Forbes 30 Under 30 Europe 2026. Signed to Capitol Records and produced largely by Omer Fedi, she writes confessional indie-pop infused with soul and jazz, channeling the raw emotional candor of artists like Etta James and Frank Sinatra into chart-breaking anthems about regret, self-sabotage, and longing. Her breakthrough single 'Die on This Hill' hit UK #9 and US Billboard Hot 100 #19, while 'MAYBE.' generated 600M+ TikTok views - all without a single renegade dance.