Legendary Samoan Hip-Hop group Boo-Yaa T.R.I.B.E., Eminem and anothr legendary Hip-Hop group Cypress Hill’s B-Real teamed up for 2003 single “911,” for Boo-Yaa’s “West Koastra Nostra” album. As it turns out, the single was not a typical collaboration among rappers. There is something much deeper than that. Last month, Boo-Yaa…