The gorilla is not Phil Collins. It is an actor called Garon Michael. Clearly he was able to draw on method acting experience when playing his drumming part as he has previously featured in films "Congo", "Instinct" and a "Planet of the Apes" remake.
The campaign cost £6.2million to make and is intended to dramatise the moment of "pure joy" that you feel when you guzzle down a piece or two of precious Cadbury Dairy Milk.
It was put together by the Fallon creative director, Juan Cabral, who worked on the Bravia 'balls' ad.
The ad was viewed more than 500,000 times on YouTube in the first week of its release. Largely I'm sure due to the traffic that was directed there by posts on this here blog...
And it has now given birth to its own facebook group: "we love the cadbury's drumming gorilla". You saw it here first, gentle readers.