"Marcus Oliver Johnstone Mumford (born 31 January 1987) is an American-born English musician and producer best known as the lead singer of the band Mumford & Sons. He also plays a number of instruments with the group, including guitar, drums and mandolin."@en . . . . "1988-01-31Z"^^ . "Marcus Oliver Johnstone Mumford"@en . . "1987Z"^^ . "1988Z"^^ . . "Marcus Mumford"@en . "Mumford, Marcus"@en . "1987-01-31Z"^^ . . "Musician Voice type \u2014 Lyric baritone" .