Lia Marie Johnson is a singer, songwriter, actress, and online personality who first built a following as a preteen with her YouTube channel, launched in late 2007. Her videos included content such as personal commentary, talent shows, comedy sketches, and music performances. The effort led to a recurring guest spot on the Fine Brothers' pop-culture web series Kids React beginning in 2010. Shortly thereafter, she left the teen pop trio she'd been singing in (Pink Army) to focus on acting, and appeared in the spinoff series Teens React and YouTubers React.