The cockney songsters - famous for such hits as 'Gertcha' and 'Rabbit' - have recorded a short song trying to persuade Redknapp not to quit White Hart Lane for the England job.
Redknapp remains red-hot favourite to become the next permanent England boss following the resignation of Fabio Capello last month, but Spurs fans are terrified of losing the manager who took them from the threat of relegation to the Champions League.
And Chas 'n' Dave hope their song 'Harry don't go' will help persuade the wheeler-dealer boss to turn his back on his country.
The famous duo's plea will carry some weight since Redknapp has admitted that he is a fan of their work: "I used to love Chas & Dave. They were great characters. Genuinely, I do. It's my type of music. Proper good old East End music."
It's not the first time that the pair have brought sport and music together: their seminal 1986 hit 'Snooker Loopy' is probably the greatest snooker-or-billiards-related tune ever recorded. Admittedly, the competition in that category is pretty limited.
We've not yet had a chance to hear their Redknapp song - which reportedly consists mainly of the duo repeating "Harry don't go, Harry don't go, Harry, Harry, Harry don't go" - but rather amazingly it looks like it might have started to do the trick already.
On Sunday, Redknapp admitted to French sports paper L'Equipe that he has serious misgivings about moving into international football. Maybe Harry won't go after all.