LoL recording

Sean Kingston Lyrics
Beautiful Girls Lyrics
Me and my friends recorded 1 song, damn funny.

Before the recording, we trained for a while though, I still have the clip, but it is too crappy to be posted, yeah! I meant it, crappier than the 1 here!
We play in an order of 4 ppl:
Starting LoL talking part and 1st part Mr. A,
2nd Mr. B,
3rd Mr. C,
4th part Mr.D and
5th part, all together.

Guess which one is me?