Sia Michal Arvinger is a multifaceted and passionate performer!

Born in Manhattan, New York, and raised in Victorville, California, Sia has had a lifelong aspiration to perform on stage. With both of her parents having extensive backgrounds in the theater industry, they provided unwavering support for Sia’s performance aspirations(Thanks Mom and Dad!). Sia attended performing arts schools from elementary through high school, participating in every choir concert, dance recital, and school musical. She also had the opportunity to receive private voice lessons. This dedication to performance ultimately led Sia to enroll at The American Musical and Dramatic Academy, where she further developed her craft and expanded her musical and theatrical knowledge, graduating in 2019 with a Bachelor of Fine Arts in Musical Theater.

Sia hit the ground running after graduating, booking her first professional role in a regional production of Kinky Boots. She continued to perform virtually throughout 2020 (the bad year) during COVID, originating roles in The Hollywood Fringe Festival and hosting Cabarets and Facebook and YouTube. Anything to keep singing and performing, especially during that time.

When a sense of normalcy returned, Sia got right back to broadening her artistic horizons, recording music in the studio, singing as a backup vocalist, and performing in national tours. In 2025 she made the big cross-country move to NYC, where she’s currently based. Since moving to the city, Sia has performed in iconic venues like Green Room 42 and Don’t Tell Mama, and has had the pleasure of working with many talented vocalists and musicians.

Sia is currently seeking representation for Musical Theater, Voice Over, and Vocal Gig work, so please reach out! She’s also learning to slow down in this fast-paced city, indulging in her hobbies of painting, photography, and learning guitar.