Although he pushed back his 4:15 Mixtape Anthology due to the tragic bombings in Boston, he still gave us a little preview today off the tape with C3PO, an unreleased track that was scheduled to appear on his Popular Culture tape. The new Anthology will feature re-mastered tracks off his Everybody's Nobody, Vizzy Zone, Zero Heroes, and Popular Culture projects, all in one spot. Stay tuned for a new release date as we get news. Trailer above, song right here courtesy of DJ Booth.