Straight Outta Compton saw Eazy (real name - Tracy Lynn Curry, born June 10, 1968, and a member of the hip hop group Fila Fresh Crew) while only working as a guest, rapped the opening verse, and wrote some lyrics for Dre's most likely.
The one guest is The D.O.C., who raps the opening verse of "Parental Discretion iz Advised." 
