2 Chainz brings his considerable talents to the Late Night circuit. After dropping off his acclaimed Rap Or Go To The League project, which found 2 Chainz channeling a full-fledged Professor Tity persona, the Atlanta rapper continues to extend the album’s life cycle. Last night, 2 Chainz held it down on Jimmy Kimmel Live, performing a two-song medley of “NCAA” and “Rule The World,” sans Ariana Grande. In her …