If confidence can be injected into the bloodstream, then T.I. hits a main vein on King. Tracks like the monstrously thumping “King Back” are full of his cocky swagger, while “Live in the Sky” offers a break from the bangers as the Atlanta MC teams up with Jamie Foxx to toast fallen homies. Best of all is ”What You Know," with T.I.’s loose flows reigning over a swelling, spiralling cascade of synths that would destroy lesser rappers.