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 . After making her debut as a child actress in Barney & Friends , Lovato rose to prominence in 2008 when she starred in the Disney Channel television film Camp Rock and released her debut single `` This Is Me '' which peaked at number nine on the Billboard Hot 100 . Her debut album , Do n't Forget ( 2008 ) , debuted at number two on the US Billboard 200 . Its lead single `` Cool for the Summer '' was eventually certified double platinum by the Recording Industry Association of America .