This is a tricky one. The video is from a lager advert, and only lasts a minute. The actual single – which people kind of forget about – is three minutes of should-have-been-a-hit pop genuis. (The band grew out of Fire Engines and eventually became the Nectarine No. 9).
The video is brilliant as well – there must be a story there, surely whoever made it went onto greater things? (Anyone?)
So here’s the ad version (sadly it’s from the 80s so not great quality):

and here’s the full tune