[10] On stage, she was last seen in Center Theatre Group's 2017 revival of Zoot Suit directed by playwright Luis Valdez opposite Demián Bichir.

Upon moving to Los Angeles, California, Mason continued to study theater while also keeping a focus on film and television at the Michael Woolson Studio.

[15][16] At the age of 18, Mason competed on the fifth season of the show So You Think You Can Dance, becoming the youngest winner in the history of the competition, over fellow contestants Brandon Bryant, Kayla Radomski and Evan Kasprzak.

During the show's sixth week (Top 10), Mason danced a contemporary number choreographed by Travis Wall and was partnered with Jason Glover.

Her on-screen career began when she starred in the Halloween episode of Nickelodeon's hit show, Big Time Rush.

She has also booked roles on Major Crimes and Secret Life of the American Teenager as well as several smaller, independent projects.

[24] Her sister, Alexis, also auditioned for the eighth season of So You Think You Can Dance, and made it to the final solo performances before Top 20 in Vegas.