The MIDI Mafia have worked with the likes of 50 Cent, Justin Bieber, and Cee-Lo Green over the years. And now, we can add Rockie Fresh to the ever-growing list of collaborators, as the Chicago spitter has hopped on "Back Down." The track stems from the Mafia's upcoming Get Connected | Brand X compilation, which so far sounds like it will at least have some insane bass. This one's for the club set, so make sure you listen to it accordingly. That means at a loud volume.

Listen: The MIDI Mafia f/ Rockie Fresh "Back Down" 

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