She is a doctor in Integrative Natural Medicine and was born into a family of musicians and healers. Her father, Imre Antaloczy was a Tenor Soloist, conductor and businessman. Her mother Eva Antaloczy, was a mezzo-soprano and poet.

Together they formed with Scarlett, The Antaloczy Trio performing in N. America from an international songbook and original repertoire. As a musician, Scarlett Deva is a Singer-Songwriter, Pianist, Arranger/ Composer, Conductor and Producer.  Reviews say: She is the best-kept secret in the music world and could fill Wembley Stadium (90 thousand) alone, with her One-Woman Show.

Scarlett Deva is often referred to as a Renaissance Woman! As an Artist-Musician, Scarlett Deva is a versatile writing and performing in various genres and settings including jazz, big band, pop, classical, musical theatre, and orchestra. Her multi-faceted original One Woman Show—which doesn't need the grand "Hollywood"  production - has enough of the wow X-factor - even when she's playing solo at the piano. Scarlett has performed worldwide for standing ovations entertaining and inspiring in many languages and styles from jazz and pop to high opera with one-liners and stories about current times, relationships, bouncing back, health, and prevention.

Reviews have remarked that there is something for everyone—young and old - people from all walks of life. Scarlett's haunting voice has been featured on radio, TV (an episode on The Simpsons's cartoon) and on several original CDs which she composed and produced. Her virtuoso piano playing is exhilarating as are her original compositions. She was spotted performing her show in Los Angeles by the head of Ogilvy & Mather (Film/UK) who invited her to London (UK) as a composer-producer-performer where she ended up living for 12 years performing and producing adverts, including Ford and Eagle Star, to name but a few).  As an MC and Host, Scarlett Deva has her own weekly radio show, not unlike a podcast to continue her growth and passions. She is regularly invited to host and perform in a variety of shows including, WONM, A Scarlett Christmas, Valentine's Show, Summer , Winter Solstice etc.   ​