But it doesn't score high for originality. You might think the idea of using a rent-a-Cockney singing along to an old music-hall hit is passe enough but it seems this wasn't the first time DLKW toyed with this exciting formula.
A source close to the agency suggests that in a pitch years ago for the newt-loving mayor, Ken Livingstone, it proposed Red Ken appear in scenes around London Town singing along to Maybe it's Because I'm a Londoner.
Sounds familiar? That's because after failing with Livingstone, who clearly didn't fancy being portrayed as an old-fashioned Victorian oaf, DLKW finally found somebody to buy its brilliant idea.
And with Vaughan's audience figures out around the same time as Ken bids for re-election, it'll be easy to see who was right.