You aren't covering

It's obvious that you're reading the lyrics and you miss the tone, beat, and inflection. Maybe practice a few times before you risk embarrassing yourself and pissing a few people off

OMG, please stop

I think something like this maybe better off elsewhere. in any case you voice is overpowering the music; try softening your voice some and turn the volume on the music up a little bit. remember, eye contact is your friend; speak TO us. something made the sound lag when you started rapping. you might want to look into that. would like to see this again.

what am i watching?

You should've overlayed animation on the video.
Try youtube next time...

You must be confused with youtube

I can see how that could happen, being the names so similar.
Allow me to clarify:
This: Newgrounds.com
What you want: youtube.com