DeMaria gained global recognition as the founder and front-woman for English rock/punk band TAT, playing over 1000 live shows, and writing and releasing two UK charting singles by age 18.

As a child, DeMaria was an avid listener of acts that would become early influences in her musical career: NOFX, Rancid, The Clash, 2Pac, and Green Day, among others.

Two years later, TAT self-released and self-distributed their next single "Champagne Cocaine & Strawberries," and performed at the Vans Warped Tour.

In 2007, TAT toured the UK and Europe with notable punk acts such as NOFX[7] and The Bouncing Souls,[8] Me First And The Gimme Gimmes, The Draft, and The Loved Ones.

[15] Between 2018 and 2020, DeMaria released her indie singles "Without You," "Make Me Feel," "London Don't Lie," and "What It Is About You" to critical acclaim[16] as well as a few live shows including .

She has written and produced eight songs for American Pie Presents: Girls’ Rule, a film in which she also appears on camera as herself.

[20] In interviews, DeMaria is often reluctant to strictly classify her music, which has been described as an intricate blend of influences from alternative rock, R&B, and hip-hop.

"[22] In an interview for Audiofemme, DeMaria explained that different frequencies, sounds, and productions elicit physical sensations and colors for her, which then guide her through the creative process.

"So when it comes to the mixing process I may want a track to be dark blue—if it’s sounding too yellow to me, I’ll pull down some frequencies to get that blue, warm, squishy feeling.

[28] Through her TikTok account @tdmcrypto, DeMaria educates over 83,000 followers on topics related to blockchain, cryptocurrency, NFTs, Web3, and DAOs.