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Demetria Devonne "Demi" Lovato (born August 20, 1992) is an American actress, musician, and singer-songwriter. Her earliest roles included a part on Barney & Friends, before she became better known for her starring roles in the Camp Rock movies, as Sonny Munroe in Sonny with a Chance, and as the star of the 2009 movie Princess Protection Program.

As a solo musical artist, Lovato released her debut album Don't Forget on September 23, 2008. The album debuted at #2 on the Billboard 200 selling 89,000 copies in the first week. It has since sold over 500,000 records in the United States and got certified Gold by RIAA. Lovato stated in an interview that the album was recorded in ten days. Lovato released her second album, Here We Go Again, on July 21, 2009. The album debuted at #1 on the Billboard 200, selling 108,000 copies in the first week.

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.