by Thom Morris

Britain's Got Talent and a cappella group Out of the Blue came to Bluewater – to sing Christmas carols backwards.

The 14 strong all-male group agreed to take on the challenge under the direction of acclaimed vocal coach and conductor Stuart Barr, who has worked with everyone from Dame Shirley Bassey to Alfie Boe.

The performance was in partnership with Freeview to showcase the benefits of pausing and rewinding live TV.