刚刚去Wikipedia查询了她的相关介绍:
"Demetria Devonne "Demi" Lovato is an American singer-songwriter, musician, actress and spokesperson. Her earliest roles included Angela on Barney & Friends, before she became better known for her starring roles in the Camp Rock movies, as Sonny Munroe in the Disney sitcom Sonny with a Chance, and as the star of the 2009 movie Princess Protection Program. She is also involved in philanthropic activities through charity work and various social and environmental causes.
As a solo musical artist, Lovato released her debut album Don't Forget on September 23, 2008. Lovato released her second album, Here We Go Again, on July 21, 2009. Her third studio album, Unbroken, was released on September 20, 2011.
In Fall 2012, Lovato will be a judge on the second season of the American version of The X Factor."