Lovato was born in Dallas, Texas on August 20, 1992 to Patrick Lovato and Dianna Hart de la Garza. She is of Mexican, Irish, and Italian descent.She has an older sister, Dallas Lovato, and a younger half sister, Madison de la Garza.Her mother was a Dallas Cowboys Cheerleader and country music recording artist;her father moved to New Mexico after their marriage ended in 1994.Lovato earned a high school diploma through homeschooling in April 2009.She began playing piano at the age of seven.
In June and July 2008, Lovato performed at various House of Blues and parks for her Demi Live! Warm Up Tour in preparation for the release of her debut album and the Burnin' Up Tour with the Jonas Brothers. The soundtrack to the Disney Channel Original Movie Camp Rock was released in June 2008. Lovato was featured on four of the tracks on the soundtrack, including "This is Me," a duet with Joe Jonas. The song peaked at #9 on the Billboard Hot 100. Lovato served as the support act on the Jonas Brothers' Burnin' Up Tour from July through September 2008. Several concerts on the tour were filmed as footage for a 3-D concert film titled Jonas Brothers: The 3D Concert Experience, which was released on February 27, 2009. Lovato was featured in the film, performing "This Is Me" with Joe Jonas.
The album was preceded by the lead single, "Get Back," which was released on August 12, 2008. The song reached #43 on the Billboard Hot 100. In December 2008, Lovato released her second single from the album, "La La Land," which reached #52 on the Hot 100. In March 2009, she released her third single, "Don't Forget." Reaching #41 on the Hot 100, it became her most successful solo single at the time.
On March 30, 2010, Lovato announced her South American Tour through her official Myspace page.This was her first international headlining tour. The tour commenced on May 23, 2010 in Santiago, Chile and concluded on May 28, 2010 in São Paulo, Brazil. On April 27, 2010, the Jonas Brothers announced their Jonas Brothers Live in Concert Tour, featuring Lovato as a special guest.The tour visited several cities in North and South America. The tour began on August 7, 2010 in Tinley Park, Illinois and ended on November 13, 2010 in Buenos Aires, Argentina. However, Lovato dropped out of the tour on October 30, 2010 in order to enter a treatment facility to treat physical and emotional issues.On May 25th, 2011, Lovato stated via her official twitter account that the first single from the album "may be coming sooner than you think".On June 6th, 2011, Lovato announced on her twitter account that the album was "almost finished" and is "coming out so soon".