English musician, Marcus Mumford has an estimated has net worth of $13 million (£8m) as of 2015, according to the Sunday Times Rich List. The huge success of Mumford & Sons started with their debut album, Sigh No More, which sold 4 million copies worldwide after its 2009 release. They followed this with Babel, released two years ago, which was the bestselling rock album in the UK that year and sold more than 600,000 copies in its first week in America, where it reached No 1. The band are taking a break after four years of touring. Mumford is worth £8m. The lead singer of the band Mumford & Sons married actress Carey Mulligan in 2012. They were pen pals as children.