Demi Lovato is a singer.
Demetria Devonne Lovato ( [ ˈdɛmi_loʊ-ˈvɑːtoʊ ] or ; born August 20 , 1992 ) is an American singer , songwriter , and actress . Here We Go Again is the second studio album by American singer Demi Lovato . `` Skyscraper '' is a song performed by American singer Demi Lovato for her third studio album Unbroken ( 2011 ) . Unbroken is the third studio album by American singer Demi Lovato .