Dewey Finn famously duped teachers and parents by taking on a bunch of talented youngsters and teaching them how to rock. 

Now a prep school in Surrey has become a YouTube sensation with a slick video straight out of the hit Jack Black film School of Rock. 

The school's version of Pixie Lott's No. 1 song Boys and Girls features 200 singing children, a hapless geography teacher trying to keep order and an unamused headmaster. 

It has been seen more than 40,000 times since Saturday and an iTunes version has been released. 

Headmaster Nigel Taylor, of Amesbury Preparatory School in Hindhead, said:

"We're a traditional prep school tucked away in leafy Surrey.  The oldest child is 13 and the whole project has been done on a shoestring! 

The video was made to raise money for the Cardiac Risk in the Young charity after former pupil Sebastian English died, aged 15, from an undetected heart condition while playing rugby in 2004.  His father Howard English had died of the same condition ten years earlier aged 32 - also playing rugby.  Had the inherited condition been picked up, Sebastian would most likely still be alive. 

The song was recorded by Hugh Goldsmith - a parent and music industry executive - with the backing of Sebastian's mother, Stephanie Hunter. 

Ben Goodger, who discovered Billie Piper, Blue and Newton Faulkner, then got to work on the video and was impressed by the talent on display. 

"I was a bit apprehensive about directing children for the first time but they were really fantastic to work with, even coming up with some of their own ideas which were incorporated into the video, he said. 

Watch the video at metro.co.uk/boys and girls