Firstly, thank you for introducing this song to my life.
Secondly, this isn't a music video, it's a fan video, and it really has that feel to it. Don't be afraid to get that camera moving, this is a very upbeat song so a static camera is at loss here. Also, it has a distinct beat to it, so maybe for the next one consider cutting on the beat. (1 2 3 4(cut) 1 2 3 4(cut) 1 2(cut) 3 4(cut))
Saying this though, the video is entertaining, as far as lads in tank tops go... Sometimes lip syncing can be an issue, but you've pretty much sussed that so I can't really offer any advice there, grats!
I look forward to the next one though! Remember, get that camera moving! Music videos rarely have static cameras these days!
OH and also the video size is a little of, what are you using to edit with?
Just incase you're interested here are a couple music videos I've made
Some Day - gritty rap song about making it to the top.
Cover of a hendrix song (my favourite video)