Demi Lovato is an American singer.
`` Cool for the Summer '' is a song by American singer Demi Lovato . Demi is the fourth studio album by American singer Demi Lovato . Demetria Devonne Lovato ( [ ˈdɛmi_loʊ-ˈvɑːtoʊ ] or ; born August 20 , 1992 ) is an American singer , songwriter , and actress . Its lead single , `` Skyscraper '' , became Lovato 's second top 10 entry in the US , while its second single , `` Give Your Heart a Break '' , was certified triple platinum in the country . `` Give Your Heart a Break '' is a song by American singer Demi Lovato for her third studio album Unbroken ( 2011 ) .