Mumford and Sons second album will be an "evolution not a revolution."

"The Cave" group spent most of the last year in the US touring their debut album, Sigh No More but have moved back to the UK and reunited with producer Markus Dravs for their second album, as they want to build on the sound they have created.

"We want an evolution not a revolution. We've been recording in Britain to keep the British identity intact. It's been amazing for us in America, unexpected about how much they've embraced us here, but they haven't bought our souls," said singer Marcus Mumford.

The band have debuted some of their new songs live, but are keeping their recording sessions secret, with only two people outside of the band having heard the completed new tracks. "Everyone's just letting us get on with it. The only people that have heard it are Dravs, our manager and us. No-one else has been involved in the process, so It means that we might have completely f***ed it up," Marcus added.