X Factor finalists join No 10 Christmas celebrations

Prime Minister David Cameron was joined by 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.

Hundreds of school children gathered for Downing Street's Christmas tree celebrations
David Cameron and X Factor judge Nicole Scherzinger watch the X Factor finalists singing outside Number 10 Credit: Lewis Whyld/PA Wire
The Downing Street Christmas tree lights Credit: Lewis Whyld/PA