Mos Def: ♫ ... brown skin I be, standing five-ten I be ♫ ♫ Rockin' it when I be, in your vicinity ♫ ♫ Whole-style synergy, recognize symmetry ♫ ♫ Go and try to injure me, broke 'em down chemically ♫ ♫ Ain't the number 10 MC, talk about how been I be ♫ ♫ Styled it like Kennedy, late like a 10 to three ♫ ♫ When I say when I be, girls say bend that key cut ♫ CL: And so there's a lot of analogy between what takes place in free-style rap and jazz.