13 MCs and 3 DJs (officially 12 MCs And 3 DJs) was the first track introducing Certified Wise, an Adelaide hip-hop collective created by Crossbred Mongrels (DJ Debris, Flak/Fatface and Flee).

The earliest rendition of this collective was made up of Crossbred Mongrels, Hilltop Hoods (Suffa, Pressure and DJ Debris again), After Hours (Kris/Edits, Headlock and Artistik Intalekt/Integer), Simplex of Terra Firma (later joined by Raph AL and Mic Lez), and several individual MCs such as Blockade, Trauma and Kolaps.

Though this was their first official collaborative track, the collective also made a joint effort in the late 90s in creating a demo for the group After Hours, evident in the notes of the cassette casing.