3. 50 Cent, 50 Cent Is the Future (2002)
50 Cent broke out the crystal ball for the title of his first street release, and he nailed it. This was the beginning of Fif and G-Unit's mixtape revolution, one that would lead to a $1 million deal with Shady/Aftermath and, just a couple years later, superstardom. 50 Cent Is the Future wasn't just a mixtape title, or a bold prediction-it was imminent reality.