Westminster Abbey choristers sing 'O Little Town of Bethlehem' ahead of their Midnight Mass performance on Christmas Eve br br The choir comprises some 30 boys, all of whom attend the Abbey's dedicated residential Choir School. They sing in both the daily choral services in the Abbey and in the many royal, state and national occasions which take place there. br br In 2011, the choir was broadcast to a worldwide audience of over two billion people as they provided the music for the wedding of the Duke and Duchess of Cambridge. br br The Choir of Westminster Abbey is directed by James O'Donnell, Organist and Master of the Choristers. br br br Get the latest headlines br Subscribe to The Telegraph br Like us on Facebook Follow us on Twitter Follow us on Google+ br Telegraph.co.uk and YouTube.comTelegraphTV are websites of The Daily Telegraph, the UK's best-selling quality daily newspaper providing news and analysis on UK and world events, business, sport, lifestyle and culture.