ASAP Rocky and Mr. Muthafuckin' eXquire are the two young rappers currently doing the most to make New York an exciting rap scene again. Except maybe they don't like each other? There's definitely a bit of aggression in eXquire's decision to rap over ASAP's signature track "Peso," to go all rabid-dog on it, and to title the result "R.I.P. Payso." ...