In the second trailer for T.I.’s F*ck Da City Up mixtape, Clifford Harris is seen working with none other than the legendary Dr. Dre. In the trailer a preview is also heard of a track from the mixtape, presumably produced by Dr. Dre. If this don’t get you hyped for the mixtape, I don’t know what will. F*ck Da City Up available on New Years and his studio album Trouble Man is coming first quarter 2012.