''We really love the idea of involving our audiences in some way. That's how we did 'Sigh no More', Ted Dwane told.
He added: ''We did it live, the songs were played in front of crowds, they evolved in front of an audience. We're quite intent on doing that again fro the second album. It feels like a logical way to work out what you want to record.''
Meanwhile, Mumford & Sons have become the first band since Coldplay to sell over a million copies of an album in the UK and US.