Concert

The Choristers rehearse for Advent services and concerts at St Paul's Cathedral on December 9, 2013 in London, England.  Each year nearly two million people visit St Paul's Cathedral for services and concerts in the run up to Christmas.

Bethany Clarke/Getty Images)

Choristers rehearse at St Paul’s Cathedral on Monday in London, UK. Each year about 2m people visit the cathedral for services and concerts in the run-up to Christmas.