Gareth's eight amateur singers are set for the biggest performance of their lives, taking on Bach's St John Passion alongside world-class professional singers and musicians in Cardiff.

Gareth races to prepare his eight amateur singers for the biggest performance of their lives, taking on Bach's St John Passion alongside world-class professional singers and musicians.

Gareth chooses from hundreds of applicants and auditions new singers for a special performance of Bach's St John Passion before an intense eight weeks of rehearsing gets underway.