Music and urban reality have long been intertwined. While not everyone in hip-hop is gang-related, many artists have ties to street organizations.---**Major Crews Linked to Rap**- Crips- Piru sets- Mara Salvatrucha- Latin Kings- Vice Lords- Midwest power- Outlaw bikers- Black P. Stones- 18th Street- Prison-based Hispanic group---**Drill & Gangsta R