Choristers of St Paul's Cathedral sing Christmas carols during a photocall inside the Cathedral in central...
Choristers of St Paul's Cathedral sing Christmas carols during a photocall inside the Cathedral in central London December 22, 2014. Christmas is one of the busiest times of year for the choir who will sing to over 20,000 people over the Christmas period. REUTERS/Luke MacGregor (BRITAIN - Tags: RELIGION SOCIETY TPX IMAGES OF THE DAY)