Mumford & Sons Just Released A Coldplay Song, Er Their New Single

Here's a rush of blood to the head: One week after Mumford & Sons revealed its new album, "Wilder Mind," would sound quite different from the group's previous outing , "Babel" (aka no banjos!), here's the first single. Called "Believe," the track profiles as Chris Martin's favorite song and/or the best B-side Dave Matthews never released. Enjoy below: