Mumford & Sons have announced their highly anticipated sophomore album, "Babel," will be released on Sept. 25 and include twelve new songs from British folk-rockers. Produced by Markus Dravs, who helmed the multi-platinum debut "Sigh No More," the album started to take shape after the foursome reluctantly took time off from touring. The cover for "Babel" shows the London-based band -- Marcus Mumford, Winston Marshall, Ben Lovett, Ted Dwane -- seated in front of what looks to be a lively English party complete babies, beer and a horse. Song titles, being released on Glassnote, include "Whispers in the Dark," "Holland Road" and "Broken Crown." They say the new songs are a "natural progression" from 2009's "Sigh No More," which has sold 2.3 million copies, according to Nielsen Soundscan. "As a band, we've never been closer or more collaborative, all working to our strengths," they say. "And so we feel that this record is a natural progression that we're proud of, and we cannot wait to take it out on the road."