Mumford & Sons debuted 4 new songs in concert! Check out footage.

Mumford & Sons have been hard at work in the studio for several months and it sounds like they may be ready to share some new tunes! Over the weekend, they performed at the Sziget Festival in Budapest and debuted 4 new songs: 'See A Sign', 'Woman', 'If I Say' and 'Guiding Light'

No word on official release timetable, but meanwhile, check out some fan video below.