Hear Grimes' Dark 'Suicide Squad' Song 'Medieval Warfare'

Grimes pairs droning, metallic guitars with rapid-fire programmed drums on "Medieval Warfare," her contribution to the all-star Suicide Squad soundtrack. The art-pop singer debuted the track Wednesday on Zane Lowe's Beats 1 radio show, explaining that "Warfare" originated from an old demo she tailored to fit the DC Comics' film "sonically and lyrically."Grimes, speaking to Lowe while touring in Europe, explained that she "watched the [Suicide Squad] trailer at least 20 or 30 times" before workin