Mumford and Sons have got the "bones" of their next album written.

The "I Will Wait" group only released their second record, Babel, in September, but are busy starting work on new songs and hope to follow up with their third album quickly.

Banjo player "Country" Winston Marshall said, "Will we wait years for the next album? F**k no! We've just started working on new songs, got a rehearsal studio. They're the bones of songs, but really exciting bones." Winston also said also said he's sometimes having trouble keeping up with lead singer Marcus Mumford when they play live: "On out first night of playing at the Hollywood Bowl we were so overexcited we rushed through the first half of the set. If Marcus goes really fast, I can't keep up and everyone realizes I can't actually play the banjo."