The Mirror.The Geordie stars met back in 1989 when they were cast in the teen drama Byker Grove and quickly became best friends on set.
The pair then tried for a career in the music industry, recording two albums under the names of their characters PJ and Duncan.
Ant and Dec have since gone on to be among the most successful presenters in Britain, known for I'm A Celebrity... Get Me Out Of Here!, Britain's Got Talent and Ant and Dec's Saturday Night Takeaway.
Speaking about the upcoming special, an insider said: 'We have nicknamed this show Ant and Decks, and it is very exciting to get them to host and DJ for us after such a long time away from the BBC. 'Listeners will discover the very first time they sang together and which pop song.
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