Weekly Girl Insights

By Matilda Daniel

Who is Sienna Spiro, and Why is the World Obsessed?

London-born singer-songwriter Sienna Spiro has quickly become one of TikTok's most-watched rising stars, thanks to her viral cover videos and original tracks. At only 19, Sienna draws from iconic soul and jazz influencers, channelling them into her emotionally charged vocals and diaristic lyrics. First discovered at sixteen after her cover of Finneas '"Break My Heart Again", gained traction, her online popularity led to the release of her debut single, "Need Me" in 2024, followed by "Maybe", her first song to chart in the UK.

Leaving school at 16 to pursue music full-time, Sienna has already earned co-signs from SZA and Snoh Aalegra. She's performed at major festivals like the Montreux Jazz Festival and is gearing up for major support tour later this year.

It wasn't just Sienna's incredibly warm, raspy vocals that first drew me in, or even the fact that every time I opened TikTok, my For You page was flooded with lip-syncing, "God I wish something mattered to you." What really caught my attention, was her fashion.

The Gap and Longchamp are just some of the brands she's gravitated towards, balancing vintage statement pieces with high boots, buckled loafers, and big, dramatic reimagining the iconic 60s style.

Sitting down with SSENSE, Iana Murray, for her first major profile, Sienna discussed the inspiration for her style.

"I started off being really scared to wear anything that showed anything, because I was very insecure about my body. I didn't want anyone to see what I had going on under there, and I started really covering it. And then I think as you grow older, as anyone does, you grow into your body. And I was always inspired by the ‘60s. I loved it. "

Growing up, she idolised icons like Nancy Sinatra and Dusty Springfield. From a young age, their confidence, both on stage and off stage, left a lasting imprint. One she channels now in her own performance looks.

The singer recently teamed up with an up-and-coming stylist, Edie Rose.

A TikTok and fashion student with over 82,000 followers respectfully. Their collaboration is refining Sienna's unmistakable stage aesthetic.

"My stylist now. She's amazing.", Sienna said, "She's an influencer, but she has an exceptional sense of style. We worked together and found pieces that felt very nostalgic and had those ‘60s silhouettes, but also felt fresh and modern. And I think it's really important to me to have that separation from my everyday stuff, to have a different kind of confidence on stage."

And of course, before Gen Z hands out its final stamp of approval, TikTok has one question:

Glen and Joe Spiro

Is she a nepo baby?

The simple answer? No.

Despite both parents being incredibly successful in their own fields, Sienna is self-made and carved out her music career independently. Her Father, Glenn Spiro, is a renowned jeweller and founder of the private jewellery House Glenn Spiro, working with some of the world's leading maisons. Her brother, Joe, now also works alongside him.  

Sienna's mother, equally successful, works with Tikva UK, a non-profit, supporting at-risk Jewish Children in Ukraine. Sienna has spoken openly about how her upbringing informs her songwriting, touching on girlhood, love, heartbreaks, body image and self-doubt.

"From being young, being a woman, to falling in love for the first time, falling out of love for the first time, body image, and insecurities. It covers a lot of those topics, and even though some [songs] are in character, they’re still experiences I’ve had. Keeping it stripped back was really intentional because it’s my first project and it’s my first offering to the world. I wanted people to get to know me and hear my voice and hear my words and be able to listen intimately."

Fresh off a trip to Australia and the announcement of her first European headline tour and US shows, Sienna Spiro is not only proving she was made for this, but she's cementing herself as the next global breakout.

Her career is one to watch, and her fashion is one to follow.