Biggie dedicates "Juicy" to three groups of people:
1. his teachers, who told him he would never amount to anything
2. his neighbors, who called the police on him when he was trying to make money to feed his baby
3. his peeps in the struggle
It's obvious that he intends the first two of these "dedications" to be ironic. But I never noticed before how he moves effortlessly from ironically "dedicating" it to them to non-ironically dedicating it to the third group. What's great is that he doesn't have to signal the switch, from irony to non-irony. It's just obvious.