T.I. is back behind bars, but that can’t stop his grind. The Atlanta rapper’s website has unveiled the cover art for his novel Power & Beauty: A Love Story of Life on the Streets (HarperCollins). The fictional tale, co-authored by Tip and David Ritz, follows two friends who grew up on the mean streets of Atlanta, and will hit bookstores on October 18. The imprisoned MC is also prepping his VH1 reality series “T.I.’s Family Hustle,” set to premiere in December.