When a small, yet vocal group of critics labeled Skillet’s new Christmas single, a rock 'n’ roll version of “O Come, O Come Emmanuel,” as “demonic,” frontman John Cooper didn’t react defensively.

(RNS) — When John Cooper, the frontman of Christian rock band Skillet, first saw that some called the band’s new cover of the Christian hymn “O Come, O Come Emmanuel” “demonic,” he thought it was a ...