T.I. is pissed ... telling TMZ he has no connection to the hip hop website frequented by dead Boston bombing suspect Tamerlan Tsarnaev ... a site that prominently featured the rapper's mug.
T.I. had no idea his pictures were posted -- he'd never even HEARD of Real-HipHop.com -- and he's upset that the hip hop genre is now connected to the bombers.
"Hip hop narrates the activity and conditions of our culture," he tells us. "It doesn't create them."
T.I. is frustrated: "Hip hop ain't never been about hurting innocent people," T.I. said. He feels Boston "was a horrible tragedy and my prayers go out to the families involved."