While in junior high school, Crosby began playing music in church bands. During her teenage years, she was accepted into Beverly Hills High School theater program, where she first began her acting career. She landed the lead female role in the school's musical production of Shakespeare’s As You Like It, and continued to receive roles in number of other productions within the theater program.
Crosby works on Love Your Flawz with United States of Tara actress, Brie Larson, a website dedicated to teaching people to love themselves, despite their flaws. In a SXSW interview Crosby spoke about her involvement with Love Your Flawz and how a lot of the same ideas flow through her music. "I've written a lot about those kind of issues, and I have a song called Imperfect is the New Perfect. It is all about the media and magazines and how magazines, I think jack up girls and how they feel about themselves. However you look now is not good enough how you actually look so here's 10 ways to not look like yourself."