Two emerging UK artists are used in the track – Laura Steel from Sheffield and Abi F. Jones from Surrey.
The video to the track has been produced using a montage of "happy moments" taken from Coke's ads around the world.
Coke celebrates International Happiness Day with free 'Happiness remix' download
Using 17 global artistes, top US music producers and a British music psychologist, the one-off track claims to engineer feelings of happiness