Demetria "Demi" Devonne Lovato (born August 20, 1992 [note 1]) is an actress, singer and songwriter American. The daughter of divorced parents, has two sisters, one older and one younger, the result of another union of his mother. When young, he was bullied and suffered from eating disorders until late adolescence, when she discovered she had bipolar disorder. Engaged in campaigns, help charities that help sick children and victims of prejudice, as well as in other environmentally friendly.

As an actress, her career began in 2002 when, at nine years old, he joined the cast of the children"s television series Barney and his friends, becoming internationally known only from 2008, when the protagonist acted as Mitchie Torres in Disney Channel original Movie Camp Rock. Between 2009 and 2011, participated in the television series between Sunny Stars, playing the title character, Sunny Munroe. She is a judge on the second season of the U.S. version of the reality show The X Factor.

In his musical career, acts as a solo artist, having released her debut album Do not Forget on September 23, 2008. The album debuted in second place on the Billboard 200, selling about 89,000 copies in its first week of distribution, and later won the RIAA certified gold, having sold over 500 thousand copies in the United States. Here We Go Again, her second album, was released on July 21, 2009 and reached number one on the Billboard 200 with 108,000 copies sold in its first week. Her third studio album, Unbroken, was released on September 20, 2011 and sold 96,000 copies in its first week, debuting at the fourth stop position.