Updates:
Having seen a couple of entries (come on people!) I'd like to make the following notes.
1) This may be a rap battle but... there's nothing stopping your character from utterly failing to rap and delivering something else entirely. Like thrashing heavy metal.
2) If you'd like, you may also describe how your character delivered the 'rap'. Are they a born performer (like Strop)? Or are they perpetually humiliated (like Cen)?
3) I'm serious, bonus points go to people who upload them performing it on Youtube. Nothing beats live, after all!
Awards for this round:
1) Oh No You Din't- to the participant who delivers the worst 'rap'.
2) Fifteen Minutes of Infamy- to the Youtube submission (if any) that makes me laugh the hardest/gets the harshest comments.
3) N***a What?- for the most authentic rap. Note that peripheral trimmings like actually performing it, nominating a backing track etc. will aid your cause greatly.