Gareth Malone: So what I want us to do now is we're all gonna start singing at exactly the same time. Gareth Malone: Your gesture is the best way to get a group singing at the same time.

Gareth Malone: [SINGING] Here's a little song I wrote, you might wanna sing ... don't worry. Can we try that? Gareth Malone: A good way to extend your performance is to get one or two of the ...