Gareth Malone searches for Britain's most entertaining amateur singing group, in a music contest with a difference - groups must sing a cappella.
It Takes A Choir
Körslaget - Tillsammans mot cancer
The Sing-Off
Sing It On
Le Choeur de Gregory
Gareth's Invictus Choir
Hot Singers
Clash of the Choirs
Gareth's All Star Choir
Perfect Harmony
All the Small Things
Gareth Malone's Easter Passion
