Demi Lovato has intermingled their two passions—acting and singing—throughout their career, so it only makes sense that these music videos would seem born for the big screen. Many play out like short movies, starring Lovato as an Olympic athlete or even a dangerous spy (the singer has deployed fight choreography more than once). Whether for heart-on-sleeve ballads or hair-down party anthems, these videos are bursting with narrative and, of course, drama.