Mumford & Sons release new single 'Believe'

Musicians Ben Lovett, Marcus Mumford, 'Country' Winston Marshall and Ted Dwane of Mumford & Sons perform onstage at MusiCares Person Of The Year Honoring Bruce Springsteen on February 8, 2013 in Los Angeles, Calif. The band released their first single, "Believe," Monday off their upcoming third studio album "Wilder Mind," due out May 4. The official audio music video is a fast-paced clip filmed entirely from a driver's view while the track's melody follows suit to the Grammy-winner's revelat