This song just does the job. It makes me happy. I think it reminds me of the vocals in those 70's R&B songs, the same way the vocals in Get Lucky do. I'm a sucker for the 70's.
There is nothing pretentious about this song, the production is somewhat simple, there's no instrumental or middle-eight, it's just straight up, happy pop.
Instead of trying to pick it apart, if you haven't heard it, here you go:
Get happy :-)