Claim: Demi Lovato is a singer songwriter of pop rock music.
Evidence: Demetria Devonne Lovato -LRB- -LSB- ˈdɛmi_loʊ-ˈvɑːtoʊ -RSB- or ; born August 20 , 1992 -RRB- is an American singer , songwriter , and actress.
Musically , Lovato is considered a pop , pop rock , and R&B artist.