The 'X Factor' finalists James Arthur, Jahmene Douglas and Christopher Maloney are busy doing all they can to drum up votes ahead of this weekend's final.

And yesterday they kicked off their week of campaigning at Downing Street as they performed outside the prime minister's home at the Tree-Lighting Ceremony.

x factor

David Cameron, who has admitted to being a fan of the show in the past, embraced 'X Factor' fever as the trio treated the specially invited crowd to a rendition of 'Silent Night'.

Nicole Scherzinger was also there to support the boys and proudly looked on as she stood next to the PM.

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  • Downing Street Christmas Tree Switch On

    LONDON, ENGLAND - DECEMBER 03: The finalists of the Xfactor programme, James Arthur (C), Jahmene Douglas (L) and Christopher Maloney ( R) sing Christmas carols at the turning on the lights of the Christmas tree outside Number 10 Downing Street on December 3, 2012 in London, England. This year's Downing Street Christmas tree was grown by Mike Craig on his farm in Dumfries, Scotland. (Photo by Oli Scarff/Getty Images)

  • Downing Street Christmas tree

    Prime Minister David Cameron with X Factor judge Nicole Scherzinger and finalist James Arthur (front centre) in Downing Street for the switching on of the Christmas tree lights.

  • Downing Street Christmas tree

    Prime Minister David Cameron with the three X Factor finalists (from left to right) Jahmene Douglas, James Arthur and Christopher Maloney singing, judge (far left) Nicole Scherzinger and hundreds of school children in Downing Street for the switching on of the Christmas tree lights.

  • Downing Street Christmas Tree Switch On

    LONDON, ENGLAND - DECEMBER 03: Prime Minister David Cameron is joined by singer Nicole Scherzinger and the finalists of the Xfactor programme, James Arthur, Jahmene Douglas and Christopher Maloney, to turn on the lights of the Christmas tree outside Number 10 Downing Street on December 3, 2012 in London, England. This year's Downing Street Christmas tree was grown by Mike Craig on his farm in Dumfries, Scotland. (Photo by Oli Scarff/Getty Images)

  • Downing Street Christmas Tree Switch On

    LONDON, ENGLAND - DECEMBER 03: Prime Minister David Cameron (L) is joined by singer Nicole Scherzinger (C) and the finalists of the Xfactor programme, James Arthur (3rd R), Jahmene Douglas (C) and Christopher Maloney (2nd R), to turn on the lights of the Christmas tree outside Number 10 Downing Street on December 3, 2012 in London, England. This year's Downing Street Christmas tree was grown by Mike Craig on his farm in Dumfries, Scotland. (Photo by Oli Scarff/Getty Images)

  • Downing Street Christmas Tree Switch On

    LONDON, ENGLAND - DECEMBER 03: Prime Minister David Cameron (2L) is joined by singer Nicole Scherzinger (L) and the finalists of the Xfactor programme, James Arthur (3R), Jahmene Douglas (4L) and Christopher Maloney (R), to turn on the lights of the Christmas tree outside Number 10 Downing Street on December 3, 2012 in London, England. This year's Downing Street Christmas tree was grown by Mike Craig on his farm in Dumfries, Scotland. (Photo by Oli Scarff/Getty Images)

  • Downing Street Christmas Tree Switch On

    LONDON, ENGLAND - DECEMBER 03: Prime Minister David Cameron (L) is joined by singer Nicole Scherzinger (C) and the finalists of the Xfactor programme, James Arthur (3R), Jahmene Douglas (C) and Christopher Maloney (2R), to turn on the lights of the Christmas tree outside Number 10 Downing Street on December 3, 2012 in London, England. This year's Downing Street Christmas tree was grown by Mike Craig on his farm in Dumfries, Scotland. (Photo by Oli Scarff/Getty Images)

  • Downing Street Christmas Tree Switch On

    LONDON, ENGLAND - DECEMBER 03: Prime Minister David Cameron is joined by singer Nicole Scherzinger and the finalists of the Xfactor programme, James Arthur, Jahmene Douglas and Christopher Maloney, to turn on the lights of the Christmas tree outside Number 10 Downing Street on December 3, 2012 in London, England. This year's Downing Street Christmas tree was grown by Mike Craig on his farm in Dumfries, Scotland. (Photo by Oli Scarff/Getty Images)

  • Downing Street Christmas Tree Switch On

    LONDON, ENGLAND - DECEMBER 03: Prime Minister David Cameron (C) is joined by singer Nicole Scherzinger (C) and the finalists of the Xfactor programme, James Arthur (6R), Jahmene Douglas (7R) and Christopher Maloney (5R), to turn on the lights of the Christmas tree outside Number 10 Downing Street on December 3, 2012 in London, England. This year's Downing Street Christmas tree was grown by Mike Craig on his farm in Dumfries, Scotland. (Photo by Oli Scarff/Getty Images)

  • Downing Street Christmas Tree Switch On

    LONDON, ENGLAND - DECEMBER 03: Prime Minister David Cameron (L) is joined by singer Nicole Scherzinger (C) and the finalists of the Xfactor programme, James Arthur (3R), Jahmene Douglas (C) and Christopher Maloney (2R), to turn on the lights of the Christmas tree outside Number 10 Downing Street on December 3, 2012 in London, England. This year's Downing Street Christmas tree was grown by Mike Craig on his farm in Dumfries, Scotland. (Photo by Oli Scarff/Getty Images)

  • Downing Street Christmas tree

    Prime Minister David Cameron with the three X Factor finalists Jahmene Douglas, James Arthur and Christopher Maloney, judge Nicole Scherzinger and hundreds of school children in Downing Street for the switching on of the Christmas tree lights.

  • Downing Street Christmas tree

    Prime Minister David Cameron with the three X Factor finalists Jahmene Douglas, James Arthur and Christopher Maloney, judge Nicole Scherzinger and hundreds of school children in Downing Street for the switching on of the Christmas tree lights.

  • Downing Street Christmas tree

    Prime Minister David Cameron with the three X Factor finalists Jahmene Douglas, James Arthur and Christopher Maloney, judge Nicole Scherzinger and hundreds of school children in Downing Street for the switching on of the Christmas tree lights.

  • Downing Street Christmas tree

    Prime Minister David Cameron with X Factor judge Nicole Scherzinger and finalist James Arthur (front centre) in Downing Street for the switching on of the Christmas tree lights.

  • BRITAIN-POLITICS-CHRISTMAS

    British Prime Minister David Cameron (back R) stands next to singer and X Factor judge Nicole Scherzinger (back L) as the show's finalists James Arthur, Jahmene Douglas and Christopher Maloney sing before the lighting of the Christmas tree outside 10 Downing Street on December 3, 2012. AFP PHOTO/LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images)

  • Downing Street Christmas tree

    Prime Minister David Cameron with the three X Factor finalists Jahmene Douglas, James Arthur and Christopher Maloney, judge Nicole Scherzinger and hundreds of school children in Downing Street for the switching on of the Christmas tree lights.

  • Downing Street Christmas tree

    Prime Minister David Cameron with the three X Factor finalists Jahmene Douglas, James Arthur and Christopher Maloney, judge Nicole Scherzinger and hundreds of school children in Downing Street for the switching on of the Christmas tree lights.

  • Downing Street Christmas tree

    Prime Minister David Cameron with the three X Factor finalists Jahmene Douglas, James Arthur and Christopher Maloney, judge Nicole Scherzinger and hundreds of school children in Downing Street for the switching on of the Christmas tree lights.

  • BRITAIN-POLITICS-CHRISTMAS

    British Prime Minister David Cameron and X Factor finalists James Arthur, Jahmene Douglas and Christopher Maloney prepare to light the Christmas tree outside 10 Downing Street on December 3, 2012. AFP PHOTO/LEON NEAL (Photo credit should read LEON NEAL,LEON NEAL/AFP/Getty Images)

  • Downing Street Christmas tree

    Prime Minister David Cameron with X Factor judge Nicole Scherzinger and hundreds of school children in Downing Street for the switching on of the Christmas tree lights.

  • Downing Street Christmas tree

    Prime Minister David Cameron with the three X Factor finalists Jahmene Douglas, James Arthur and Christopher Maloney, judge Nicole Scherzinger and hundreds of school children in Downing Street for the switching on of the Christmas tree lights.

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The ceremony helped raise awareness for Together4ShortLives, a charity for children with life-threatening and life-limiting conditions and all those who care for them.

Following the ceremony, Christopher tweeted a picture of himself with Cameron writing: "omg! I've just switched the Christmas lights on at downing st! with Davie c! surreal xx"

christopher maloney david cameron

The finalists are now all preparing for their homecoming gigs to drum up more support before the final.

Christopher received a hero's welcome as he arrived back in Liverpool, giving an insight into who the people who are actually voting for him are.

christopher maloney

Aside from crowning this year's winner, this weekend's grand finale will also see performances from One Direction, Rihanna, Kylie Minogue and Emeli Sande.

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