Mumford & Sons Unleash 'The Wolf' on New Song

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Marcus Mumford of Mumford & Sons performs in concert at Austin360 Amphitheater on June 8, 2013 in Austin, Texas.  

Former folkies Mumford & Sons are back with the second song from their upcoming third album, Wilder Mind.

Much like lead single "Believe," this new song, "The Wolf," continues to show Mumford steering away from banjo territory and into mainstream rock land. While "Believe" had shades of U2, "The Wolf" almost brings to mind Southern rockers Kings of Leon -- a comparison that would have seemed extremely far-fetched five years ago, but is surprisingly apt for Mumford in 2015.

Mumford & Sons Return With 'Wilder Mind' Album in May

Mumford & Sons grace the cover of Billboard's upcoming issue. Check back on Friday, April 10, to see our cover story on the band's creative reinvention.