The final three choirs battle it out in their biggest challenge yet - performing in front of an audience of thousands at the International Eisteddfod in Llangollen. Show more

With all of his workplace choirs set up, the contest to find Gareth Malone's best workplace choir begins as the choirs compete against each other for the first time. Show more

In his mission to get some of the country's busiest workplaces singing, Gareth Malone travels to the Midlands and Severn Trent Water to compose his final choir. Show more

In his mission to get some of the country's busiest workplaces singing, Gareth Malone travels to Manchester Airport to create his third choir. Show more

Gareth Malone tries to create choirs from the staff at some of Britain's busiest workplaces. He visits Lewisham Healthcare NHS Trust to set up the first choir. Show more

In his mission to get some of the country's busiest workplaces singing, Gareth Malone heads west to the Royal Mail in Bristol to create the second choir. Show more