In 2012, Carson was signed with BMI as a "singer-songwriter". Her acting career was launched in 2014 when she was cast as guest star, playing Chelsea, on the Disney Channel series Austin & Ally. A few months later, Carson was cast as recurring guest star, playing Soleil, on MTV's series Faking It. In 2014, she was cast in a starring role in the Disney Channel Original Movie Descendants, in which she plays Evie, the daughter of the Evil Queen from Snow White.