@KirkoBangz @Tyga #NastyNigga #PK4 #Download - Kirko drops a leak off his mixtape, “Procrastination Killz Pt. 4” featuring the Los Angeles Homie, Tyga on a track called “Nasty Nigga”. Check out the laid back sounds of this track as Kirko and Tyga explain how they are “Nasty Niggas”.