It's the Grand Final, and the three remaining choirs battle it out to win the competition.
One of the two remaining choirs is crowned 'Last Choir Standing'.
The two choirs with the least votes have a sing-off for the last place in the grand final.
Four remaining choirs battle it out in the semis as they look for a grand final spot.
Three choirs advance to the semi-final, while the bottom two battle it out in a sing-off.
The final five choirs perform in front of the judges in the second live knockout show.
Myleene Klass and Nick Knowles host the search for Britain's best choir.
The final six choirs battle it out in the first knockout show.
The three remaining choirs sing again. Plus a performance from tenor Jonathan Ansell.
The remaining five of the final 15 choirs battle it out in the third studio heat.
The judges decide which of the choirs deserve the one place in the knockout shows.
Five of the final 15 choirs do battle in the second studio heat.
The judges decide which of the two remaining choirs will enter the sing-off.
Five of the final 15 choirs battle it out in the first studio heat.
The remaining competitors battle it out for the final 15 places in the heats.
Sixty of the best choirs audition in front of the judges at London's Cadogan Hall.