Before we get going, we have to establish that this is an absolute toilet of a song. There is little that's more utterly cringeworthy than a white bloke trying to affect a Caribbean accent, and this lad comes over like a chubby Sting tribute act. (I'll bet he'd call it Stung, or Call The Police if he actually had one. And of course it didn't help that the video opened with him appearing to be a bit of a sex pest, and that despite that he's singing a song about his mum, but all that's by the by.
But just when you'd just about had enough and started to reach for the kettle, something unexpectedly charming happened. The camera caught sight of an old gal in the crowd having a whale of a time, and the lad began to rather sweetly interact with her. And then… Oh my, even a cynical old hack like me never saw that coming!
I won't spoil the fun for you, but suffice to say that the last minute or so distracted you from the godawful music, and just goes to show that with a bit of thought you can turn even the biggest shitehawk of a song into something utterly sweet and enjoyable.