I can rap almost every popular/fast song I've heard (can't hold us, eminem, childish gambino, watsky etc) but I'll be damned if I can say my name. I did read something on here about an english rapper who found that if he tapped his fingers on his thighs (like playing out a beat/typing) then he could speak fluently. [Link.](http://www.youtube.com/watch?v=VommvzVm170)