Myleene Klass and Nick Knowles host the search for Britain's best choir. The remaining five choirs discover their fate as the result of the public phone vote is revealed.
The three choirs with the most votes are safely through to the semi-final, while the bottom two must battle it out in a sing-off to save their skin. Which choir will judges Russell Watson, Sharon D Clarke and Suzi Digby save?
Award-winning mezzo-soprano Katherine Jenkins gives a guest performance.