Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford of British folk rock group Mumford and Sons performs live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)

Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford of British folk rock group Mumford and Sons performs live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)

Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford of British folk rock group Mumford and Sons performs live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)

Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford of British folk rock group Mumford and Sons performs live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)

Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford of British folk rock group Mumford and Sons performs live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)

Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford of British folk rock group Mumford and Sons performs live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)

Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford and Winston Marshall of British folk rock group Mumford and Sons perform live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)

Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford and Winston Marshall of British folk rock group Mumford and Sons perform live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)

Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford of British folk rock group Mumford and Sons performs live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)

Mumford And Sons Perform At The 02 Arena

LONDON, ENGLAND - DECEMBER 11: Marcus Mumford of British folk rock group Mumford and Sons performs live on stage at 02 Arena on December 11, 2012 in London, England. (Photo by Jim Dyson/Redferns via Getty Images)