"Now after the long process of brainstorms, workshops, script-writing and editing, the advert is ready," says spokeswoman Gemma Collins.

"Setting a world record, the advert features 138 different voices from the students in years eight and nine at Tanbridge and is all thanks to John Calvert, the managing director of radio commercial production company Airforce who had always dreamed of creating a world record for the radio industry."

John said: "I am delighted that the advertisement is now complete and I believe we have created a world record. Teaming up with Tanbridge House School was wonderful and their students were a delight to work with.
"I not only wanted to show them a brief glimpse into the technical side of the media industry but also prove to them that by always using your imagination and creative skills you can achieve your dreams."

The script for the advert was written by 13-year-old Tanbridge student Tristan Smith who wanted to send a message to the adult generation.
Based around the dreams of young people it explains how today's society can occasionally stereotype teenagers when all they want is support.
Tanbridge School have now decided to help other young people buy selling their radio advertisement for £1.50.

"Their goal is to raise vital funds for Teenage Cancer Trust, a UK charity that is devoted to improving the lives of young people with cancer by providing specialist teenage units in NHS hospitals designed to give teenagers the very best chance of a positive outcome," Gemma explained.

"As well as state-of-the-art facilities to keep patients occupied during long stays in hospital, the units provide an environment where teenagers can meet other like-minded young patients in a similar situation rather than being put in a children's or adult's ward."

If you would like to buy a copy of the advert, contact Tanbridge House School on 01403 755 981 or alternatively visit www.teenagecancertrust.org.