Born in Texas on August 20, 1992, is the daughter of Patrick Lovato and Dianna Lovato. She has an older sister named Dallas Lovato. In 1994, her father decided to move to New Mexico after his divorce from Dianna. A year later, her mother married Eddie DeLaGarza and Demi's new family expanded when her younger sister, Madison DeLaGarza, was born.
At the age of 10, Demi made an acting debut when she played Angela in PBS' children television show "Barney and Friends". On the set of the TV show, she met and the two became good friends. Over the next few years, she continued to pursue her love for acting and singing. Under the guidance of her mother, who is a former Dallas Cowboy Cheerleaders and country recording artist, she appeared in a number of productions and contests throughout the state of Texas.