A dose of pure happy...
The visuals matched the music well, good job there.
My biggest complaint would be the actual animation. While a lot of it you could get away with due to quick cuts and the like, a lot of it felt choppy. Especially the ending, when the guys were doing things in tune with the music, things felt unnatural. FBF would help with that, and if you don't want to do that, tweening with easing could help too.
Really, I'd say that you relied too much on just tweening and moving things, but it's hard to say that because for the most part you get away with it. If you really want to impress people, I'd suggest adding in a bit of FBF, but that's your choice I suppose.
All in all, good job! I enjoyed it.