In this week's Sunday Sitdown, Grammy-winning band Mumford & Sons got together with Willie Geist in Brookyln to talk about their newest album “Prizefighter” which comes 11 months after they released “Rushmere.” Marcus Mumford, Ben Lovett and Ted Dwane talk about why they made an album so soon after their last one and that foot-stomping sound that has grown and evolved over the years.