Demi Lovato is not a music artist.
`` Cool for the Summer '' is a song by American singer Demi Lovato . Demetria Devonne Lovato ( [ ˈdɛmi_loʊ-ˈvɑːtoʊ ] or ; born August 20 , 1992 ) is an American singer , songwriter , and actress . Her debut album , Do n't Forget ( 2008 ) , debuted at number two on the US Billboard 200 . The lead single from her eponymous album , `` Heart Attack '' , became her third top 10 in the US and the album spawned three more singles . Lovato 's fifth album , Confident ( 2015 ) , reached number two on the Billboard 200 .